Best Bluetooth FM transmitter 1

10 of the best Bluetooth FM transmitter options for your car

Time to upgrade your car with the best Bluetooth FM transmitter? A Bluetooth FM transmitter can ensure a great commute.

No one wants to be stuck with a poor radio connection or static sound when they’re on a long drive. Not all vehicles come with the best audio systems built-in. 

The good news for today’s drivers is you can always upgrade your radio. The best Bluetooth FM transmitter will do a lot more than just strengthen your radio signal.

You’ll also gain access to a Bluetooth connection. That means you can stream music from radio apps and the storage on your phone. 

You can use Bluetooth FM transmitters to listen to MP3 files, online channels, podcasts, and streaming services like Spotify. 

Some of the best FM Bluetooth transmitter technology also comes with functionality for taking hands-free calls or map navigation. 

Today, we’re going to explore some of the best Bluetooth transmission options equipped with Bluetooth technology.

Best Bluetooth FM transmitter 2

1. Sumind Bluetooth FM Transmitter (Best Aux Output)

If you prefer to use an aux output for your music, the Sumind Bluetooth FM Transmitter might be just what you need. This device can easily connect to your car’s aux port and provide a stable and clear audio connection.

Besides being Bluetooth-enabled, the Sumind transmitter is designed for convenience. It’s among the few FM transmitters with intelligent and fast charging capability. Its charging port has an intelligent feature that can distinguish between iPhone and Android devices to provide the fastest charging speed possible.

We reviewed this transmitter in the car with a focus on ease of use and safety while driving. The results were phenomenal.

First, we realized that the Sumind Bluetooth FM Transmitter is designed to be as user-friendly as possible for the drivers. It comes with a large key for easy operation.

Moreover, it has a 1.7-inch large LCD backlight display that is easy to read, even in low light conditions.

And the best part is that its 270-degree flexible neck ensures you can easily adjust the device for your viewing angle.

Another key reason we featured the Sumind in our review is that it’s made to be highly versatile and compatible with many devices. From an iPhone, iPod, iPad, and Android to tablets and MP3/MP4 players, you can connect seamlessly to the Sumind Bluetooth FM Transmitter.

With a high-quality wireless audio output, noise and wind are reduced for an excellent music experience. And its noise cancellation feature further enhances audio quality.

For a price of around $26, here are the main features:

  • Large LCD backlight display
  • 270-degree gooseneck design
  • Hands-free car kit
  • A2DP support
  • Enhanced Data Rate (EDR)
  • Dual USB ports
  • QC3.0 fast charging technology
  • Noise cancellation
  • Micro SD card and MP3 player ports
  • Aux input and output

The Sumind is equipped with CVC noise-cancellation technology that suppresses noise and wind to ensure full duplex sound output.

It’s also made to facilitate your safety while driving. The built-in microphone supports hands-free phone calls, so you can answer or make a call without taking your hands off the wheel.


  • Quick and intelligent charging
  • Easy viewing through the large LCD display
  • Flexible gooseneck design
  • Versatile connectivity options
  • Noise-cancellation technology
  • Stereo audio quality and high-quality calls


  • Can only support one device at a time
  • No voice assistant access
(Upgraded Version) Bluetooth FM Transmitter, Sumind Wireless Radio Adapter Hands-Free Car Kit with 1.7 Inch Display, QC3.0 and Smart 2.4A Dual USB Ports, AUX Input/Output, TF Card Mp3 Player
30,107 Reviews
(Upgraded Version) Bluetooth FM Transmitter, Sumind Wireless Radio Adapter Hands-Free Car Kit with 1.7 Inch Display, QC3.0 and Smart 2.4A Dual USB Ports, AUX Input/Output, TF Card Mp3 Player
  • Intelligent and fast charging: input 12-24 V; Output 2 USB ports: smart 2.4 A charge port which can intelligently identify android or iPhone devices and QC3.0 fast charge port
  • Special design: large key for easy operation; 1.7 Inch large LCD backlight display song name/ incoming phone number and shows your car's battery level when car start; Can rotate the LCD display screen in 270-degree gooseneck for optimal viewing comfort; Turn off the FM transmitter: long pressing the next song key for 5 seconds, it will turn off the FM and functions keep charging function
  • Broad compatibility: this radio adapter works with compatible devices, like iPhone, iPad, iPod, tablet, smartphones, you can transfer music in those devices to car audio via 3.5 mm audio cable; Support TF/ Micro SD card in FAT format up to 32G; Support A2DP; Support MP3/ WMA format; Also support AUX output
  • High clear sound and call quality: adopted advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind; Built-in microphone feature supports hands-free talking reduce interference
  • Features v4.2 and EDR: compared to earlier or older versions likeV2.0, V 2.1, or V3.0, V4.2 consumes much less energy and lasts much longer; EDR(Enhanced Data Rate), which ensures a faster data transmission rate and much more stable connection between a device and the audio receiver
Best Bluetooth FM transmitter 3

2. Nulaxy KM30 Bluetooth FM Transmitter (Best Display)

If you’re looking for a Bluetooth FM transmitter with a sleek and modern look, the Nulaxy KM30 Bluetooth FM Transmitter might be just what you need. Its minimalistic design, multi-color LED display, and crystal clear sound make it a top contender for the best Bluetooth FM transmitter.

This Bluetooth car adapter has a 1.8-inch color screen that makes hands-free calling a breeze.

One thing we liked about the Nulaxy KM30’s screen is that it’s big enough to display a wider visual interface. Therefore, you can rest assured of a clear display of the song title, incoming caller ID, FM frequency, Bluetooth-connected devices, and voltage level.

Besides its high-definition visual interface, this transmitter’s built-in microphone stands out for its noise-cancellation feature. The quality of your calls is significantly improved by suppressing background noise during calls.

The microphone is stronger to support better hands-free calling when you’re on the wheel. This is a feature we tested to confirm whether it was the reality.

According to our tests, the microphone amplifies the sound reception while strengthening its quality. As a result, you get a higher reception level.

Let’s face the reality—we have different tastes when it comes to music. While some people prefer a higher bass, others would rather listen to music with a higher treble. As a result, we couldn’t overlook the Nulaxy KM30’s audio equalizer.

The built-in equalizer allows you to switch between treble and bass mode effortlessly. This feature is particularly useful for audiophiles who love to have control over their music.

For about $24, you get the following features:

  • Auxiliary port
  • Bluetooth connectivity
  • LED-colored LCD display
  • A stronger microphone
  • QC3.0 fast charging
  • Siri and Voice Assistant
  • Micro SD card slot

The QC3.0 fast charging feature is essential if you use your phone for navigation. It will charge your phone 4 times faster than conventional chargers, ensuring you stay on course and never have to worry about losing power.


  • Colorful display and an easy-to-use interface
  • Clearer hands-free calls through noise-cancellation microphone
  • Audio equalizer for personalized sound
  • Fast charging of your mobile devices


  • Can only support one device at a time
  • Can be quite fragile
Nulaxy FM Bluetooth Transmitter for Car, Strong Microphone Bluetooth Car Adapter with 1.8' Color Screen for Hands Free Calls, Supports QC3.0 Charging, Treble and Bass Sound Music Player- KM30
16,465 Reviews
Nulaxy FM Bluetooth Transmitter for Car, Strong Microphone Bluetooth Car Adapter with 1.8" Color Screen for Hands Free Calls, Supports QC3.0 Charging, Treble and Bass Sound Music Player- KM30
  • 【Car Bluetooth FM Transmitter】: Nulaxy KM30 bluetooth car adapter provides multi-solutions for your hands-free driving and in-car stereo streaming. It features a big display screen offering a wider visual interface for more information, such as incoming phone number, track name, FM frequency, battery voltage, Bluetooth connected device and more.
  • 【Stronger Microphone for Better Hands-free Calls】: KM30 utilizes stronger microphone, greatly amplify sound reception and strengthen sound quality, bringing a higher level of experience.
  • 【Treble & Bass Music Streaming】: You can stream music directly from your car radio via Bluetooth / microSD card / Aux out, and enjoy free switching between treble and bass mode, the color spectrum auto-syncs with your music.
  • 【QC3.0 Fast Charging】: It Comes with a QC3.0 charging port to deliver high-speed charging to driver and passenger, the charging time is 4 times faster than conventional charging.
  • 【Bring Voice Service in Your Car】: You can stay fully focused on the road by using Siri or Voice Assistant to make phone calls, send texts or get driving directions. Nulaxy KM30 brings voice service in your car.
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3. Guanda Bluetooth FM Transmitter (Best With TF Card)

Our team was looking for an all-round Bluetooth FM transmitter that can support multiple playing options, and we found the Guanda Bluetooth FM Transmitter. This Bluetooth FM car adapter is built to cater to different music preferences.

Apart from supporting Bluetooth streaming, it also has a TF card slot that enables you to play music directly from your memory card. This feature can come in handy for people who may not have access to an internet connection or prefer to keep all their music in one place.

The adapter kit is also designed to make driving a breeze, even at night. For instance, its color LCD display is not just easy to read, but it also gives you an instant view of your car battery voltage.

Plus, its LED backlight design keeps the buttons illuminated at night for quick operation without causing any disturbance while driving.

And what if you want to charge multiple smartphones? Well, this FM transmitter has a USB car charger for all smartphones. To make it even better, this charger supports the QC3.0 fast charging feature, so you don’t have to wait long to charge your phone fully.

As mentioned, the Guanda Bluetooth FM Transmitter supports different music-playing preferences. Therefore, besides the TF card slot, it supports a U-disk and AUX input and output.

You also don’t have to worry about streaming your favorite music from multiple phones from different brands. This adapter supports iPhone, Samsung, LG, iPad, and other Android devices.

Another feature that sets this FM transmitter Bluetooth car kit apart is its mode of operation. It transmits music to an FM preset frequency to ensure a wonderful car stereo sound delivered via the vehicle’s speaker.

For about $29, get the following features:

  • QC3.0 USB charger
  • TF card port
  • Temperature controls
  • Bluetooth 5.3 technology
  • CVC noise cancellation technology
  • 2 USB ports
  • Short circuit protection
  • In-built over-current and over-voltage protection

A point worth noting is that this device supports voice smart navigation and one-click hands-free calling to ensure your road trips are safe and cozy.

Its Hi-Fi stereo music and crystal-clear voice navigation make it a perfect device for long drives. Moreover, its temperature control feature prevents the adapter from overheating and short-circuiting.


  • Multiple music-playing options
  • LED backlight design for easy operation at night
  • Fast charging of multiple devices
  • Excellent audio quality
  • Best sound reception due to echo cancellation
  • Efficient one-click, hands-free calling
  • Temperature control feature to prevent overheating


  • May experience audio signal interference on some FM radio frequencies
  • May not be compatible with some car models
  • No headphone jack
Upgraded Bluetooth FM Transmitter for Car, Wireless Radio Adapter Kit W 1.8' Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger QC3.0 for All Smartphones Audio Players - Black
7,446 Reviews
Upgraded Bluetooth FM Transmitter for Car, Wireless Radio Adapter Kit W 1.8" Color Display Hands-Free Call AUX in/Out SD/TF Card USB Charger QC3.0 for All Smartphones Audio Players - Black
  • EXCELLENT 4-in-1 BLUETOOTH 5.3 FM TRANSMITTER: Guanda’s Bluetooth car adapter can accept UNIQUE 4 different audio transmission ways: Bluetooth; U Disk; AUX in/out Port; TF Card. Our Car Radio Adapter Bluetooth FM Transmitter has Broad compatibility with Samsung, LG, Sony, iPhone (including X, XS, 11/12/13 Pro Max), Android, iPad, and more.
  • ADVANCED 1.8" DIGITAL COLORFUL LCD DISPLAY: Via Our Bluetooth FM transmitters for car, more indicators can be clearly seen, such as Bluetooth name, FM stations, connected device's name, car voltage, music name, music amount, colorful and lively music spectrum, play status, volume etc. Meanwhile, car radio adapter Bluetooth transmitter adopts rotated 360-degree flexible elegant gooseneck design.
  • OPTIMAL CHOICE FOR YOUR VEHICLE: This audio adapter FM transmitter Bluetooth car kit transmits music on your mobile device to a FM preset frequency, as while wonderful stereo sound is delivered via vehicle's speaker. The car transmitter can play MP3, WMA, or FLAC files, you can enjoy 5 Hi-Fi stereo noble and elegant EQ music modes switch at will.
  • ONE CLICK HANDS-FREE CALLING & VOICE SMART NAVIGATION: Bluetooth adapter for car is equipped with Noise Suppression (CVC) technology and echo-cancellation, that brings superior calling experience. Besides, you can also get crystal clear voice navigation and Hi-Fi stereo music from your car Bluetooth adapter, which means your driving trip will be more safe and more cozy.
  • INTELLIGENT CAR CHARGER ADAPTER, SAFE AND QUICK CHARGE: FM transmitter for car comes with 2 USB ports (QC3.0 and 5V/2.4A), you can charge two devices simultaneously. Built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection, it will effectively ensure safe charging.
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4. Gooinng Bluetooth FM Transmitter for car (best air vent option)

Enjoy a clearer sound and more versatility with the exceptional Gooinng transmitter. 

Like many of the best Bluetooth FM transmitters we’ve looked at, the Gooinng provides a Bluetooth 5.0 connection. This ensures stability when you’re streaming. 

Tecboss also uses noise cancellation technology to give a more crisp and cleaner sound. 

Unlike other products that plug into your cigarette lighter and take up a chunk of space, the Gooinng clips to your air vent, out of the way of the other essential parts of your vehicle. 

You can use this device to stream clear FM radio music, access tunes via Bluetooth, or listen to a micro SD card. 

For a bit of extra fun, there are also seven color options for your backlight. 

If you need help keeping your attention on the road, you can also connect the Gooinng to your Siri or Google assistant. The device can then give you driving directions or make calls upon request. 

For a price of around $18, features include:

  • Bluetooth 5.0 clear performance
  • Noise cancellation technology built-in
  • Convenient air vent connection
  • Music streaming from micro SD
  • 7 color backlight options
  • Dual charging ports
  • Access to smart voice assistant

Although this FM transmitter Bluetooth device comes with some bonus features like noise cancellation and smart assistant access, it’s missing some things, too. 

You don’t, for example, get any ultra-quick charging technology. The transmitter can also only connect to one device at a time.


  • Bluetooth 5.0
  • Excellent noise cancelling
  • Easy and convenient design
  • Micro SD access
  • Voice assistant


  • No quick charge functionality
  • No multi-device connections
Bluetooth FM Transmitter for Car, Wireless Radio Adapter Car Music Player Car Receiver with Bluetooth FM Frequency Support Hands Free Call,Car Charger Dual USB Port,TF Card/AUX
1,071 Reviews
Bluetooth FM Transmitter for Car, Wireless Radio Adapter Car Music Player Car Receiver with Bluetooth FM Frequency Support Hands Free Call,Car Charger Dual USB Port,TF Card/AUX
  • 【 Wireless in-Auto Bluetooth Adapter 】:This fm Bluetooth transmitter car is a great vehicle gadget, easy to use, set-up & control. It can serve different functions, like QC3.0 fast charging, music player & hands free calling. The good thing about this transmitter is that it comes with a memory card slot and 7 Lighting Effects, you can opt to save your favorite songs there, it is played in your car, just like the old school.
  • 【 7 Lighting Effects】:Our bluetooth FM transmitter has 7 lighting adjustment modes , which can be used to illuminate the car inside and match different music mood.Short press the "M" button to switch the light color, the LED light will change from the order of red/orange/yellow/green/cyan/blue/purple
  • 【2 Charging Ports & Bluetooth hands- free 】: The car bluetooth adapter supports charging 2 devices simultaneously, one QC 3.0 charging port (5V/3A), another USB charging port (5V/2.4A). the USB radio bluetooth adapter supports hands-free calling , you can answer/ reject/ redial calls with one click ,make driving safer.
  • 【Easy to use】: The package comes with an air vent clip and a sticky seat. You can mount it on the car air vent or stick it on the dashboard. The 1.1-meter cable provided means this device can be used anywhere in the car.In addition, when a call comes in, the bluetooth car adapter will automatically switch from music playback mode to bluetooth hands-free mode.
  • 【Wide compatibility】: It supports Android and IOS systems, like iPhone, iPad, iPod, tablet, smartphones etc, built-in Bluetooth 5.0 chip and noise cancellation technology (CVC) that makes hand-free calls sound stable and clear . TheBluetooth car transmitter has three modes of music playing, via Bluetooth connection.
Best Bluetooth FM transmitter 6

5. Nulaxy KM18 Bluetooth FM transmitter (best for ease of use)

One of the most popular options for FM Bluetooth transmitters, the Nulaxy KM18, offers excellent performance and simplicity. 

During our Bluetooth FM transmitter review, we found the Nulaxy device quick and convenient to use. 

The screen offers plenty of useful information, and getting a Bluetooth connection requires just one tap of a button. 

One of the best features of the Nulaxy is its advanced noise reduction capabilities. You can enjoy superb sound quality no matter what you’re listening to. 

Plus, a USB charging port is available to keep your device running smoothly. The hands-free calling functionality also ensures you can answer and manage calls on the move. 

With safety features built-in for extra peace of mind and access to an aux input or TF card slot, the KM18 has it all. 

For around $18, features include:

  • USB C port
  • LCD screen with plenty of important information
  • Easy Bluetooth streaming
  • FM band broadcasting with noise cancellation
  • Simple functionality
  • Aux and TF card input
  • Safety functions to protect drivers

The Nulaxy KM18 makes it quick and convenient to upgrade your car’s functionality with Bluetooth streaming and stronger FM connections. 

There’s even a feature that lets you keep track of car battery voltage. 

The volume is a bit limited, and the device can sometimes cycle through stations at random.


  • Simple functionality
  • Safety features included
  • TF card options and aux input
  • USB charging
  • Reliable audio


  • Limited volume level
  • Cycles through stations at random
Nulaxy Wireless in-Car Bluetooth FM Transmitter Radio Adapter Car Kit W 1.44 Inch Display Supports TF/SD Card and USB Car Charger for All Smartphones Audio Players-KM18
128,935 Reviews
Nulaxy Wireless in-Car Bluetooth FM Transmitter Radio Adapter Car Kit W 1.44 Inch Display Supports TF/SD Card and USB Car Charger for All Smartphones Audio Players-KM18
  • 1.44 Inch LCD Display: Nulaxy KM18 Bluetooth FM transmitter has a 1.44 inch screen for better displaying information like phone calls, FM channels, music, car battery voltage, etc. The ideal screen size to assist you in driving safe without disturbance.
  • Flexible Gooseneck&Bluetooth V5.0: The rotatable Gooseneck of the wireless radio adapter can provide you with an adjustable viewing angle and optimal viewing comfort of LCD display screen. With the Bluetooth V5.0 technology, the car bluetooth adapter can provide a more stable and faster connecting without intermittent disconnection.
  • Noise Cancellation&Hi-Fi Sound Quality: Nulaxy noise-cancellation technology dampens the road noise and gives you clear, crisp sound for hands free calls. High Quality Music Streaming ensures crystal clear sound for listening music and hands-free calls.
  • Hands-free Calls: All in one button for hands-free calls: answer/reject/hand up/recall make you seamlessly switch between incoming calls and music. Enjoy complete voice-control and safer driving with this Bluetooth transmitter.
  • Wide Compatibility: The fm transmitter bluetooth for car is compatible with most devices on the market, such as iPad, iPhone, iPod, HTC, Galaxy, Sony, MP3 player, tablet and Android Smartphones. You can play your favorite songs on your car stereo via Bluetooth, TF Card and Aux Cable. And it fits 12V-24V cars and trucks.
Best Bluetooth FM transmitter 7

6. Joyroom Bluetooth 5.3 FM Transmitter (The Latest Bluetooth Technology)

The best Bluetooth FM transmitter depends on what you’re looking for in your new car accessory. 

If you’re all for the latest technology, then the Joyroom Bluetooth 5.3 FM Transmitter is the perfect fit for you.

This FM transmitter boasts Bluetooth 5.3 technology that ensures faster and more stable connections, lower power consumption, and wider compatibility with different devices.

It’s the latest Bluetooth version on the market, and with it, you can stream music and make hands-free calls wirelessly without any interruptions.

One thing we love about this car Bluetooth adapter is the fact that you don’t have to charge it, especially if you’re in a hurry. You can simply plug it into a 12-volt outlet and begin enjoying your music or tune into your preferred radio station.

Better still, if your vehicle has a 3.5mm jack, you can use the AUX port for a more stable and clearer connection without radio frequencies. And if that’s not enough, it also has a USB port where you can charge your phone or other devices.

Our focus when reviewing this adapter was its sound quality, and we have to say, it doesn’t disappoint. It has a Hi-Fi bass boost that aids in transmitting well-balanced, high-fidelity audio from any device to the car system.

All you have to do is press the “b” button on the device for a crystal clear car stereo sound and balanced bass.

For about $24, the Joyroom Bluetooth FM Transmitter comes with:

  • Siri and Google Assistant
  • Three type-C USB ports
  • Noise reduction capability (the latest CVC 8.0 technology)
  • Auxiliary port
  • 3.5mm AUX cable
  • QC3.0 fast charging

It’s worth noting that the Joyroom is designed to ensure a much safer driving experience since it’s mounted to the air vent, making it closer to your eye level. Consequently, you don’t have to strain by stretching to see the screen.


  • Faster and more stable Bluetooth connections
  • High-quality sound with a bass boost feature
  • Multiple charging options (three USB ports)
  • No radio frequency is required to play
  • Support for hands-free calling through Siri and Google Assistant
  • Easy mounting on air vent for safe driving


  • May experience interference if used with other Bluetooth devices nearby
  • May not fit all car air vents
Bluetooth 5.3 FM/AUX Bluetooth Car Adapter, JOYROOM【Air Vent Installation & Bass Boost】 3 Ports PD&QC 3.0 FM Transmitter for Car, Radio Bluetooth Receiver for Car HD Calling and Enjoy Music
3,395 Reviews
Bluetooth 5.3 FM/AUX Bluetooth Car Adapter, JOYROOM【Air Vent Installation & Bass Boost】 3 Ports PD&QC 3.0 FM Transmitter for Car, Radio Bluetooth Receiver for Car HD Calling and Enjoy Music
  • 📻【FM Transmitter & AUX Adapter】 JOYROOM Bluetooth FM transmitter can be easily used in cars without built-in bluetooth. It doesn't need to be charged, just plug into a 12-volt outlet and tune to a specific radio station. If your car has a 3.5mm jack, its AUX mode definitely the easiest way to go, it can play straight through your car (no radio frequency required) with true zero distortion sound quality. (Package comes with a 3.5mm AUX cable)
  • 🎵【Hi-fi Bass Boost】 After self-optimizing the sound, this FM transmitter will transmit high-fidelity, well-balanced audio from your device to the car system. Just press the button "b" to Immerse yourself in powerful deep bass and stereo sound.A bass-heavy audio performance makes it ideal for drving, because it's powerful enough to cut through wind noise
  • 🚗【Much Safer Driving Experience】 Bluetooth car adapter mounted to the air vent would be closer to your eye level. It is so nice that you don't need to lower your head. Its comparatively bigger button allows you to easily adjust without worrying about pressing the wrong button. Compared to other adapters that directly plug into the car socket, it does not distract much attention from driving, much safer
  • 📞【Clearer Calls & Siri/Google Assistant】 Enhanced microphone with 2-3 more sound-collecting ports than other car Bluetooth FM transmitter in the market, making sound pickup easier. The latest CVC 8.0 noise reduction technology can filter out background sounds (such as wind from vents and outside) to get clearer calls on both ends. Long pressing the middle button can also wake up Siri/Google Assistant for GPS audio, stream your music, etc.
  • 🔋【Three Ports Charging&LED Light Design】 Car Bluetooth Adapter can charge three devices simultaneously via one PD 30W Type-C and two QC3.0(18W per) USB charging ports and will auto-assign the best charging efficiency. The PD Port supports iPhone Series/Samsung fast charging. The QC 3.0 port can charge most Android devices from 0% to 60% within 35 minutes. When night comes, LED lights can make it easier for you to find the charging port
Best Bluetooth FM transmitter 8

7. Nulaxy KM28 Bluetooth FM Transmitter (Best With Voice Assistant)

Whenever we do a top 10 review here at Radio Fidelity, there’s often one brand that seems to excel in a specific category more than others. That seems to be the case for Nulaxy in the world of the best Bluetooth FM Transmitter options.  

The Nulaxy KM28 Bluetooth FM Transmitter is one of the best options with voice assistant. Whether you prefer Google Assistant or Siri, this device has got you covered.

With the right app installed on your device, you can use voice commands to play music, make calls, or get directions without taking your hands off the wheel. This feature comes in handy when driving since it helps minimize distractions.

What’s more, the Nulaxy KM28 has a big color screen that displays all the crucial information you need while driving. From car battery voltage, incoming phone numbers, track names, FM frequency, and more, everything is presented on one screen.

Therefore, unlike some FM transmitters with small screens, this device ensures you don’t miss out on anything.

We also loved the efficient QC3.0 quick charging, which charges compatible devices up to four times faster than standard chargers. Plus, dual USB ports allow you to charge your devices without affecting audio transmission.

Whether it’s music or calls, this device guarantees high-quality sound thanks to its advanced CVC/DSP noise cancellation technology. This feature reduces background noise and echoes for clear, hands-free calling and an immersive music experience.

For slightly above $26, get the Nulaxy KM28 to enjoy the following features:

  • 8 Colorful LED Backlit Modes
  • Big color screen
  • Air vent clip
  • Smart voice control
  • USB drive compatibility
  • TF card port
  • Bluetooth connectivity
  • AUX line

Another feature worthy of mentioning is the BASS/TRE booster that allows you to switch between bass and treble mode, depending on your music preference.


  • Clear sound quality with noise cancellation technology
  • Easy viewing due to the big color screen
  • Hands-free smart calling and music streaming
  • Multiple device charging through dual USB
  • Fast-charging capability
  • Space decoration through colorful LED lights


  • May require frequent tuning to avoid interference with local radio channels
  • Voice commands may be limited in certain apps and menus
Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth Adapter V5.0 with Big Color Screen, Support Hands-Free Call, Siri&Google, MP3 Music Player BASS&TRE Booster, TF Card/AUX-KM28
4,324 Reviews
Nulaxy Bluetooth FM Transmitter for Car, Wireless Car Bluetooth Adapter V5.0 with Big Color Screen, Support Hands-Free Call, Siri&Google, MP3 Music Player BASS&TRE Booster, TF Card/AUX-KM28
  • 【Big Color Screen & Air Vent Clip】Our new car bluetooth adapter adopts a big color screen for more information and better visual experience. Now you can read more information such as incoming phone numbers, car battery voltage, FM frequency, track name, etc. In addition, the air vent installation offer you better view angle for your safety.
  • 【Dual USB Ports & QC3.0】The dual USB charging port enables you to charge 2 devices at the same time. One of them is a QC3.0 fast-charging port, which can charge your device up to 4 times faster than the standard charge. You can charge 80% of your phone battery just in 35 minutes, saving you much more time than average. Besides that, other ports such as TF card slot, AUX output port offer you multiple choices to use.
  • 【Thoroughly Hands-free with Siri&Google】Transfer all your phone call and audio streaming into wireless through the FM bluetooth transmitter car. You can easily answer / hang up / reject / redial a phone call with the spin button. Enjoy the smart voice control and play with Siri/Google assistant. Try to say “Call Mom”, “Get directions home”, “Play some music”, get things done more conveniently and enjoy safe driving.
  • 【Improved Audio Performance】The big microphone of bluetooth transmitter car is able to collect voice effectively, and the CVC/DSP noise cancellation technology can avoid traffic background noise for clearer conversation. What’s more, the BASS/TRE booster button provides 2 modes for you to adjust, just get immersed into your customized music style. Note: Maintain minimal deviations in BASS/TRE adjustments. Excessive amplification or reduction may compromise audio fidelity.
  • 【8 Colorful LED Backlit Modes】Long press the light button on the fm transmitter bluetooth for car to enter the light change mode, and then spin the knob to adjust to the light mode you want. There are 7 mono color modes plus 1 color-changing mode, choose any mode you like to decorate your space, let it color your car!
Best Bluetooth FM transmitter 9

8. Avantree CK310 Bluetooth FM Transmitter (best external device)

A Bluetooth FM transmitter doesn’t necessarily have to plug into your cigarette lighter to be effective. 

Avantree takes a unique approach to unlocking new music in your car with this external FM transmission device. 

A rechargeable battery built into the transmitter gives you up to seven hours of talk time and nine hours of music time. The device also turns on and off along with your car thanks to its automatic on/off power function.

Portable and easy to use, this intriguing product comes with Bluetooth 4.1 technology and a USB port where you can charge your smartphone. 

There’s an FM LED screen for checking your channels and a handful of buttons for controlling your music. 

For a price of around $27, the Avantree CK310 Bluetooth FM Transmitter ensures you can listen to your music wherever you go without compromising car voltage. 

Features include:

  • Easy-to-use buttons
  • FM connectivity for car radio
  • Bluetooth streaming (Version 4.1)
  • Rechargeable battery with 7-hour life
  • Friendly design
  • USB port for charging

The Avantree CK310 is an interesting alternative to some of the more common cigarette lighter port options on the market. 

This could be an ideal choice if you spend a lot of time moving between different cars and might forget to take your transmitter with you. 


  • Great FM transmission quality
  • 7-hour battery life
  • Bluetooth 4.1 connectivity
  • No need to plug into your car
  • Friendly design
  • Automatic on/off function


  • No quick charge function
  • Incompatible with smartwatches
  • Does not work with car GPS navigation
Avantree CK310 Bluetooth FM Transmitter for Car, Wireless Radio Adapter Hands Free Car kit with Magic Tape, Auto Power On Off with Car, Rechargeable Or USB Wired, Stereo Receiver for Music Call, 7H
2,218 Reviews
Avantree CK310 Bluetooth FM Transmitter for Car, Wireless Radio Adapter Hands Free Car kit with Magic Tape, Auto Power On Off with Car, Rechargeable Or USB Wired, Stereo Receiver for Music Call, 7H
  • [WIRELESS STREAMING IN YOUR CAR] Adding technology in your car: 1) Wireless connection; 2) Answer phone calls with a touch of a button; 3) Navigation with your phone GPS; 4) Play music, podcasts, audiobooks and more!
  • [NO CIGARETTE LIGHTER REQUIRED] Unlike other products on the market, this Bluetooth FM transmitter does not occupy your cars cigarette lighter or other port locations. The built-in battery is designed to last up to 7 hours of wireless play time for music, taking calls or navigating with driving directions.
  • [PLACE ANYWHERE YOU WANT] More versatile than competitor’s devices that only connects to the cigarette port restricting your mounting locations. Our wireless FM radio transmitter device comes with magic tape to be placed wherever is most convenient for you to operate and make clear calls.
  • [TURNS ON / OFF WITH YOUR CAR] Conveniently designed so you don’t have to worry about charging and pressing the power button every time you step in your vehicle. While connected via USB port, the hassle-free CK310 auto powers on/off along with your vehicle. Compatible with all Wireless enabled phones and all car models with FM radio.
  • [USER FRIENDLY] Using wireless or wired connection – turn your car FM radio on, find an empty frequency, and match it to the transmitter; Pair it with your mobile device via Wireless to enjoy music playback or hands-free conversation. The large LED touch screen simplifies the process of adjusting FM frequencies, answering or disconnecting calls, or playing and pausing your music.
Best Bluetooth FM transmitter 10

9. Syncwire Bluetooth 5.3 FM Transmitter (Best With Bass Sound)

In the world of the best Bluetooth FM transmitters, the Syncwire Bluetooth 5.3 FM Transmitter stands out for its impressive bass sound.

Syncwire is known for producing high-quality audio cables. This FM transmitter doesn’t disappoint.

This FM car kit guarantees a Hi-Fi deep bass, thanks to its exclusive bass key-press that creates a stereo effect, making this device stand out in terms of bass output quality. Therefore, it’s your go-to option if you’re all about that bass.

But apart from its impressive sound quality, this FM transmitter is also well equipped with the latest Bluetooth 5.3 technology for a stable and fast connection to your phone or other devices.

During our review, we noticed that its Bluetooth facilitates faster pairing with compatible devices. You don’t have to wait for long before you begin enjoying your favorite music or attending to hands-free calls.

To make it even better, Syncwire’s Bluetooth technology enhances the streaming quality of audio from navigation apps, Google Assistant, or Siri to your car. As a result, you get a safer and smoother driving experience.

If you must attend to multiple calls while driving, the Syncwire FM transmitter supports hands-free calling to ensure you safely focus on the road. Its built-in Noise Suppression (CVC) technology minimizes unwanted background noise, facilitating crystal-clear communication.

For about $23, this Bluetooth FM transmitter comes with the following features: 

  • QC3.0 charging
  • Dual USB type-C charging ports
  • Google Assistant and Siri
  • Bluetooth 5.3 technology
  • Hi-Fi stereo bass for car radio
  • Multi-safety protection

One thing most people consider before buying any Bluetooth-enabled device is its compatibility. However, this shouldn’t worry you because the Syncwire car Bluetooth adapter is compatible with a wide variety of Bluetooth devices.

From iPads, iPods, iPhones, Sony, HTC, Galaxy, MP3 players, Android, and tablets to smartphones, the reception is excellent. 


  • Impressive bass sound quality
  • Fast and stable Bluetooth connection
  • Multi-purpose compatibility with various devices
  • Crystal-clear noise suppression for clear, hands-free calls
  • Faster charging of mobiles and other devices
  • Easy-to-use interface


  • A little bulky
  • Hard to find FM channels
Syncwire Bluetooth 5.3 FM Transmitter for Car, 38W PD&QC3.0 Dual USB Charging Bluetooth Car Adapter Microphone & Bass Sound MP3 Music Player FM Car Kit with Hands-Free Calling
6,342 Reviews
Syncwire Bluetooth 5.3 FM Transmitter for Car, 38W PD&QC3.0 Dual USB Charging Bluetooth Car Adapter Microphone & Bass Sound MP3 Music Player FM Car Kit with Hands-Free Calling
  • 【PD 3.0 & QC 3.0 Fast Charging】Syncwire bluetooth car FM transmitter support charging two kinds of devices simultaneously---Quick Charge 3. 0 port and Type-C PD 20W ports. The maximum total power can reach 38W, so the charger efficiency is 80% more than normal charger. Synwire can providing you a high-speed and convenient charging experience.
  • 【Advanced Bluetooth 5.3 FM Transmitter】Built-in latest Bluetooth 5.3 technology, Syncwire bluetooth car adapter provides a more stable connection for streaming music over FM frequency and making hands-free calls,, allowing for faster pairing with compatible devices, supporting smart voice navigation from your phone, streaming the audio from navigation app/Siri/Google Assistant to your car.
  • 【Hi-Fi Deep Bass & Backlit】Exclusive bass key-press juicing up the stereo effect makes this device stand out, which offers you crystal-clear sound while you are enjoying the long ride with your beloved ones. Besides, surrounding blue LED backlit pulsing with the rhythm.
  • 【Hands-free Calls】The built-in Noise Suppression (CVC) design can reduce external environmental noise well to provide crystal clear for hands-free call. All in one button: answer/reject/hand up/recall enable you seamlessly switch between incoming calls and music.
  • 【Wide Compatibility】This car Bluetooth adapter can be used with any Bluetooth device such as iPad, iPhone, iPod, HTC, Galaxy, Sony, MP3 player, tablet and Android Smartphones. And it fits 12V-24V cars and trucks.
Best Bluetooth FM transmitter 11

10. Lihan Bluetooth Car Adapter (Best LED Colored Backlit)

Finally, we come to one of the best Bluetooth FM transmitter options for those searching for a colorful experience. 

The Lihan Bluetooth Car Adapter has LED-colored backlights, making it stand out, especially at night. It’s designed to give your car interior a unique and vibrant touch while providing you with an amazing audio experience.

This Bluetooth car adapter stands out for its one-cycle color mode and seven color lighting modes that ensure a visually stunning display of colors. With such a combination, you can choose the color that suits your mood and style.

With this FM transmitter, you don’t have to fumble with your phone while driving to change songs or attend to calls. It has an easy-to-use, hands-free calling feature and audio receiver that ensures your safety on the road. 

As a cigarette lighter Bluetooth transmitter, it seamlessly connects cell phones via Bluetooth, facilitating a one-click to answer, hang up, redial, or reject calls. Consequently, you can enjoy hassle-free music streaming and voice calls during your journey.

If you have multiple devices to charge, its QC3.0 USB ports come in handy. You can charge two devices simultaneously and save time on the road.

This plug-and-play device is compatible with most Bluetooth-enabled devices like iPhones, Samsung Galaxy, HTC, iPad Pro, and more. It’s also wide FM frequency compatible, giving you a wide range of FM frequencies to tune in.

For about $17, this adapter comes with the following features: 

  • Seven color lighting modes
  • QC3.0 USB ports
  • Hands-free calling built-in microphone
  • Noise suppression CVC technology
  • USB-C ports
  • QC3.0 fast charging

It’s worth noting that the Lihan Bluetooth FM Transmitter is designed for safety. It has an in-built over-current, short-circuit protection, and over-voltage protection for your safety.


  • Colorful LED-backlit display
  • Fast charging (0 to 80% in 35 minutes)
  • Easy-to-use hands-free calling and audio receiver feature
  • Compatible with a wide range of devices
  • Compatibility with USB flash drives
  • 1-year warranty


  • It can be challenging to skip through radio stations
  • Limited display information
LIHAN USB C Bluetooth Adapter for Car, AUX Wireless FM Radio Transmitter, Handsfree Calling & Audio Receiver, MP3 Music Player, QC3.0 & Type-C PD USB Car Charger,7 Colors LED Backlit
11,559 Reviews
LIHAN USB C Bluetooth Adapter for Car, AUX Wireless FM Radio Transmitter, Handsfree Calling & Audio Receiver, MP3 Music Player, QC3.0 & Type-C PD USB Car Charger,7 Colors LED Backlit
  • ❤️[7 COLORS LED BACKLIT MODE]This Bluetooth car adapter has 7 color lighting modes and 1 cycle color mode that can get a visually stunning display of colors, you can keep 1 color or play the colors in turn. Perfect for using in the dark and improving driving safety.
  • ❤️[HANDSFREE FM BLUETOOTH TRANSMITTER]The cigarette lighter Bluetooth adapter connect the cellphone via Bluetooth, One-click to answer/redial/hang up or reject calls. Built-in microphones and noise suppression (CVC) tech for clearer Hands-Free Calls. You can keep your eyes on the road making driving more interesting and safe.
  • ❤️[TYPE-C & QC USB CHARGER] This FM transmitter fit 12V/24V car cigarette socket.It can fast charge two devices simultaneously via the USB C (PD3.0) port and QC3.0 USB port. The USB-C Port can fast charge compatible with Samsung, iPhone, and Google from 0 to 50% in half an hour. The Quick Charge 3.0 USB Port can charge devices from 0% to 80% within 35 minutes.
  • ❤️[CAR RADIO ADAPTER &MUSIC PLAYER]The car radio Bluetooth connects the car radio via the FM channel. Then you can enjoy music from Bluetooth devices/TF card(≤64GB) /USB flash drive(≤64GB) to the car stereo.
  • ❤️[SAFE TO USE]This FM transmitter Bluetooth for cars has built-in over-current, over-voltage, and short-circuit protection, effectively preventing multiple problems. Worry-free 12-month.

Choosing the best Bluetooth FM transmitter

Finding the right Bluetooth FM transmitter for your car means considering what kind of functionality you want to add to your commute. 

These days, there are plenty of options available. You can get a Bluetooth FM transmitter for car hands-free calling and quick device charging. 

There are also options out there that accept aux cables and SD cards. 

The best FM Bluetooth transmitter for you will be one that offers all of the performance components you need with a price tag you can afford.

Here are just some of the things you might need to consider to make the right choice:


Having a good display on your transmitter makes it easier to find the radio channels you want to listen to.

Some devices also come with handy information about things like car battery and voltage. We love the Nulaxy KM30 for its screen, but the Nulaxy KM18 is a great choice, too. 


Aside from Bluetooth, what other connections do you want?

Are you hoping your device can connect to your smartphone and any assistant apps you have? Do you want to play your music from a USB stick or an SD card? The Guanda is a great choice for multiple music playing options. 

Bluetooth performance

Since you’re looking for the best Bluetooth FM transmitter, it makes sense to consider Bluetooth quality. Many of the leading options on the market today come with Bluetooth 5.0.

You probably shouldn’t accept anything less than Bluetooth 4.2 if you want a strong transmission. 


The design of your transmitter will determine how much space it takes up in your car, as well as how easy it is to use.

The Joyroom is a good option for people who want to keep their devices out of the way. It slots easily into the air vent of your car. 


Many of the leading car accessories offering FM and Bluetooth streaming come with charging ports.

Multiple USB charging stations will allow you to power up various audio devices at once. The Lihan uses state-of-the-art technology to give your smartphone extra juice in no-time. 

Extra features

Don’t forget to check out the additional features on your new purchase. Features like hands-free calling are excellent for keeping your attention on the road, so look for a good microphone.

Smart assistant access make it easier to send texts hands-free, and you can even ask questions about directions.

Why You Should Trust Us

At Radio Fidelity, we understand that finding the best Bluetooth FM transmitter for your car can be daunting. That’s why we take our reviewing process seriously and strive to provide you with the most reliable and trustworthy recommendations. 

Here’s why you should trust our reviews:

  • First-hand experience: Our team of reviewers consists of individuals with extensive first-hand experience with Bluetooth FM transmitters. We’ve been using these devices in our vehicles for long, gaining an in-depth understanding of their performance, quirks, and features.
  • Side-by-side testing: To ensure that we recommend only the best options, we conducted rigorous side-by-side testing of numerous Bluetooth FM transmitters. This hands-on approach allows us to compare their performance objectively and identify the standout models.
  • Comprehensive evaluation: In our testing, we focused on five key metrics that matter most to car enthusiasts: sound quality, ease of use, profile, smart features, and interface organization.
  • Unbiased and transparent: We take pride in providing unbiased and transparent reviews. At Radio Fidelity, our goal is to empower you with the information you need to make an informed decision. We don’t accept paid promotions or incentives from manufacturers, ensuring that our recommendations are solely based on our experience and testing.

What’s the best Bluetooth FM car transmitter?

There’s no one-size-fits-all solution when choosing the best Bluetooth FM transmitter. The right Bluetooth FM transmitter for you will depend on what you want to get out of your new car upgrade. There are, however, a lot of great choices out there. 

We love the Joyroom Bluetooth 5.3 for reliable and quick connections. The Lihan is excellent if you need quick charging on the move.

For a fantastic all-around experience, the Nulaxy KM30 might be a little more expensive, but it checks a lot of boxes for modern tech fans. 

Good luck finding the ideal Bluetooth FM transmitter, and remember to check out our other reviews on the Best Car DAB Radio Adapters and Shortwave Radio Receivers for more advice. 

Radio Fidelity: For the love of radio.

Just so you know… This article contains affiliate links. The commission we earn helps to cover our costs, and comes at no additional cost to you. For more information on our affiliate program, please refer to our disclosure policy.

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