It's hard to know which is good wireless radio transmitter for car. There are alot of wireless radio transmitter for car reviews on internet. In this article we suggest top 10 the best wireless radio transmitter for car for you. Please read carefully and choose what is the best wireless radio transmitter for car for you.

It’s hard to know which is good wireless radio transmitter for car. There are alot of wireless radio transmitter for car reviews on internet. In this article we suggest top 10 the best wireless radio transmitter for car for you. Please read carefully and choose what is the best wireless radio transmitter for car for you.

Best wireless radio transmitter for car

Product Features Editor's score Go to site
VicTsing Bluetooth FM Transmitter, Wireless In-Car Audio Adapter /w USB Port, Support AUX Input 1.44 Inch Display TF Card Slot - Silver Grey VicTsing Bluetooth FM Transmitter, Wireless In-Car Audio Adapter /w USB Port, Support AUX Input 1.44 Inch Display TF Card Slot - Silver Grey
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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 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
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Bluetooth FM Transmitter for Car, 5.0 Wireless Bluetooth FM Radio Adapter Music Player /Car Kit and 2 USB Ports Charger Support USB Drive Bluetooth FM Transmitter for Car, 5.0 Wireless Bluetooth FM Radio Adapter Music Player /Car Kit and 2 USB Ports Charger Support USB Drive
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Criacr [Upgraded Version] Bluetooth FM Transmitter for Car, Wireless FM Radio Transmitter Adapter Car Kit, Dual USB Charging Ports, Hands Free Calling, U Disk, TF Card MP3 Music Player Criacr [Upgraded Version] Bluetooth FM Transmitter for Car, Wireless FM Radio Transmitter Adapter Car Kit, Dual USB Charging Ports, Hands Free Calling, U Disk, TF Card MP3 Music Player
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Nulaxy KM18 [Upgraded Version] Bluetooth FM Transmitter for Car, 1.8 Nulaxy KM18 [Upgraded Version] Bluetooth FM Transmitter for Car, 1.8" Color Screen Radio Adapter W QC3.0 & 5V/2.4A Charging, Handsfree Call, Support Microsd Card, Aux Play, EQ Modes
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VicTsing Bluetooth FM Transmitter for Car, Wireless in-Car Radio Transmitter, Music Player Car Kit with Power Off, Stereo Sound, Hands-Free Calls and 2 USB Ports Support USB Flash Drive VicTsing Bluetooth FM Transmitter for Car, Wireless in-Car Radio Transmitter, Music Player Car Kit with Power Off, Stereo Sound, Hands-Free Calls and 2 USB Ports Support USB Flash Drive
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Bluetooth FM Transmitter, Vproof in-Car Wireless Radio Transmitter Adapter Music Player Car Kit W Blue Circle Ambient Light, 2 USB Ports, Hands Free Calling, TF Card & USB Flash Drive Support Bluetooth FM Transmitter, Vproof in-Car Wireless Radio Transmitter Adapter Music Player Car Kit W Blue Circle Ambient Light, 2 USB Ports, Hands Free Calling, TF Card & USB Flash Drive Support
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Nulaxy Bluetooth FM Transmitter for Car, 1.8 Nulaxy Bluetooth FM Transmitter for Car, 1.8" Color Screen Wireless Radio Adapter Handsfree Car Kit with QC3.0 & 5V/2.4A Charging, Support USB Drive, microSD, Aux, EQ, Car Battery Reading- KM29 Black
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LoHi Bluetooth FM Transmitter for Car, Wireless Radio Adapter Hands-Free Kit 1.8''Color Display with Auto Search FM Blank Channel & QC3.0 Fast Charging Function, Support USB, TF Card, AUX Input/Output LoHi Bluetooth FM Transmitter for Car, Wireless Radio Adapter Hands-Free Kit 1.8''Color Display with Auto Search FM Blank Channel & QC3.0 Fast Charging Function, Support USB, TF Card, AUX Input/Output
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JETech Wireless FM Transmitter Radio Car Kit for Smart Phones Bundle with 3.5mm Audio Plug and Car Charger (Black) JETech Wireless FM Transmitter Radio Car Kit for Smart Phones Bundle with 3.5mm Audio Plug and Car Charger (Black)
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1. VicTsing Bluetooth FM Transmitter, Wireless In-Car Audio Adapter /w USB Port, Support AUX Input 1.44 Inch Display TF Card Slot - Silver Grey

Feature

Wide Compatibility: VicTsing wireless in-car Bluetooth FM Transmitter is well compatible with iPhone 8,iPhone 8 plus, iPhone X, iphone 7 iphone 7 plus, Samsung, HTC, Blackberry, Sony, Tablet and iPad etc.
1.44'' Large LCD Backlight Display Screen: 1.44 inches screen provides clear display: song name, incoming phone number and voltage of the car battery.
Crystal Sound and Memory Function: Adopted advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind. Our factory had improved the using experience to reduce interference. Also, our FM transmitter could automatically connect the next time if had been connected before.
Faster Charging STATION: Comes with a 5V-2.1A charging port which can charge most USB devices, better charging performance!( Unable to read USB sticks )
More Surprises: Firstly,Supports hands-free calling with microphone; Secondly, supports TF/Micro SD memory card in FAT format up to 32G; Thirdly, supports A2DP; Fourthly, supports MP3/WMA/FLAC format; support AUX output and input.

Description

Goose Neck Design and 1.44 LCD Display Screen
Flexible metal hose, Convenient to adjust its direction.
Large LCD Screen shows the incoming phone number, current song's name and the voltage of the storage battery clearly.
Easy Installation, Plug and play, Easy to use.

Memory Function
Fast Bluetooth pairing. Once paired, the FM transmitter will automatically connect with the last paired smart device when turned on next time.

Clear Sound and Hand-Free Calling
Adopted advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind. Take hands-free calls for pleasurable driving experience!

Specifications:
Bluetooth Version: V3.0 + EDR
Effective Bluetooth Range: 10 meters
FM Frequency: 87.5MHz - 108.0MHZ
Working Voltage: 10V~24V
Audio Input/Output: 3.5mm audio interface
USB Charging Port: 5V/2.1A
Compatible Phone Models: Compatible with iPhone 8,iPhone 8 plus, iPhone X, Samsung, HTC, Blackberry, Sony, Tablet and iPad

NOTE:
1.Please do not violently rotate the head part when using it (the rotation angle shall not exceed 90).
2.Tune it to an unused frequency.
3.The max input & output current of the transmitter varies with charged devices, due to charged devices are able to limit output current automatically.

Package Included:
1x Bluetooth FM transmitter
1x User Manual
1x Audio Cable(1m)

Warranty:
60 days money-back and 12-month, worry-free Guarantee

2. 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

Feature

1. THE BEST: Consolidated for customers the best FM Transmitter on the market the Nulaxy KM18 won the market for its quality and superior technology.
2. GREAT ADVANTAGES: Compatible with most devices on the market (Apple, Samsung, Xiaomi, Oppo, Sony) you will not have problems with compatibility. Play your favorite songs in the sound of your car through Bluetooth, TF Card, Aux Cable. Advanced noise reduction system will guarantee you a quality crystal clear sound.
3. BIG LCD DISPLAY: Developed with 1.44 inches screen to better visualize your phone calls, musics, car battery voltage. Ideal sized screen to assist drivers without disturbing the experience while driving safely.
4. TECHNOLOGY IN YOUR CAR: With our device you will add in your car: 1) Bluetooth connection; 2) Answer phone calls with a click and safely while driving; 3) Voltmeter function to control the quality of your car battery; 4) 3 different ways to play music in your car and more.
5. VOLTMETER FUNCTION: Safety when driving is our first concern, so we equip our devices with voltmeter. You can now check the quality of your battery before your trip or daily ride. Battery between 14.8V to 13.4V is when your car is on and moving. Battery between 12.8V to 12.2V is the normal voltage of the battery in your car parked and power off. Battery below 12V change the battery as soon as possible.

Description

Nulaxy KM18 is the best selling FM Transmitter on the market, has been consolidated by uniting quality and high technology.

The functions that our KM18 adds to your car without any type of installation and wires is incredible. With our device you bring your classic car to a new generation without change its style or damage the originality of your car.

Add in Your Car:
1) Answer calls phones safely and with one click;
2) Listen to music from your phone, MP3 player, tablet , laptop, tf card and connected devices via aux cable in the sound of your car;
3) Control the quality of your car battery with our voltmeter function;
4) Charge your devices through the secure USB port;
5) LCD screen with ideal size to view your telephone calls, music, car battery voltage and other information with more comfort and quality.

Add all these functions with just one device is not amazing?

Bring your car to new generation in a simple and safe way!

Nulaxy, driving you safer and better.

3. Bluetooth FM Transmitter for Car, 5.0 Wireless Bluetooth FM Radio Adapter Music Player /Car Kit and 2 USB Ports Charger Support USB Drive

Feature

2 PORTS USB CAR CHARGER & QC3.0 CHARGER: Support charging two devices simultaneously, one port is Quick Charge 3.0 port compatible with: QC2.0, Hua Wei FCP, Type-C and Samsung., and the matching smart IC can automatically match the current.
Under the maximum output, the charger efficiency is more than 80%, so that your device can be fully charged in a short time. Better-charging performance! [Note: QC2.0/3.0 are not compatible with Samsung S9.]
ANSWER CALLS HANDS-FREE:High-performance microphone with Noise Suppression (CVC) technology, grants you crystal clear call. Answering/redialing/dismissing or ending call just simply click a button.
Seamlessly switches between incoming calls and music; Drive more safely . Moreover, it supports voice navigation of your phone.
IMMERSE IN HiFi MUSIC: Insert a USB flash driver which contains MP3 files into the"RIGHT"USB port and enjoy it.
If that's not enough, it can also support your playlist with full range of audible frequencies with no distortions of the original signal from your MP3, iPhone, Android Smartphones and more Bluetooth enabled devices.
WIDE COMPATIBILITY: Bluetooth Car FM Transmitter can be paired as a hands-free kit with all Bluetooth enabled devices, such as iPhone, iPad, iPod, Tablet, Samsung, HTC, Sony and other Andriod Smartphones;
Stream music and calls directly from your mobile devices to car stereo system via FM radio signal( 87.5-108.0MHz).
MULTI-SAFETY PROTECTION: Comes with built-in over-current protection, over-voltage protection, intelligent temperature control, short circuit protection. The FM transmitter effectively prevents multiple unsafe problems.
Low noise and low ripple output, which can effectively reduce the loss of electronic devices within the charging device. Better protect your car and smart devices.

Description

Top Quality QC3.0 In-Car Wireless Bluetooth professional-grade FM Transmitter

This little gadget with dual USB Ports Charger(one is QC3.0 charger), LED digital display screen and Built-In
Mic, gives you safer, Flexible and convenient driving experience of hands-free calling, music enjoyment, quick charge.

Feature:

Wirelessly transmit phone call from mobile phone to car FM stereo system.
Switch to hands-free mode automatically from music playing status when receive call.
Built-in Microphone.
Support music playing from USB.
Detect and display the voltage of car battery when power on.
Full 206 channels optional from 87.5-108.0MHz.
With Voice prompts.
Low voltage warming warning: Less than 12V (Voice prompt ).
Incoming call number announcement.
Supports last call redial.

Function:

Built with a high-performance microphone, with Echo Cancellation and Noise Reduction (CVC) technology offers you
a crystal clear calling and safer driving.
Two music play mode(pair with the phone via specific Bluetooth or Insert USB Disk into the Right USB Port) let
you be absorbed in music playing when driving.
Built in dual USB ports car charger(one QC 3.0 speedy charge port), and smart charging IC, automatically detects
your devices and charges all cellphone or iPad at optimal speed. Charge two devices simultaneously
and fully charged in a short time
Super compact and portable design with blue LED digital screen display of FM frequency and car voltage,
provides you portable driving travel.

NOTE:

Please NEVER use it in these conditions:
Moist or underwater conditions.
Near heater or high-temperature service.
With direct and strong sunshine.
Never dismantle it without due permission.

Package contents:

1x Bluetooth FM Transmitter with Dual USB Charge Port
1x User Guide

4. Criacr [Upgraded Version] Bluetooth FM Transmitter for Car, Wireless FM Radio Transmitter Adapter Car Kit, Dual USB Charging Ports, Hands Free Calling, U Disk, TF Card MP3 Music Player

Feature

High Quality Bluetooth Transmitter - More stable FM signal, better anti-interference performance, enhanced sound experience and built-in microphone with Echo cancellation and noise suppression (CVC) technology, offer your hands-free talking and wonderful music.
Wider Range - Full FM radio frequency range from 87.5 to 108.0MHz is wider than what ordinary transmitters are of (88.1~107.9 MHz), which means you will get a frequency without interference more easily and do not have to keep re-tuning it.
Excellent HI-FI Stereo Sound - Noise and wind suppressed by CVC technology to create full duplex sound quality; support MP3/wma/wav/flac, anti- statics design, enjoy the lossless music in your car!
Universal Compatibility & Memory Function - Supporting mobile's A2DP function, work with SD, TF card and U disc. Fit for most of the smartphones Samsung iPhone, iPad, tablet and more devices that equipped with bluetooth function. Besides, it will automatically connect to its memorized paired Bluetooth device when power on.
Charge Easily - With two USB charging ports (output 5V-2100MA), you can get your devices full charged in short time. The power comes from cigarette lighter so it is suitable for most cars.

Description

The Criacr FM Transmitter is a new Bluetooth FM Transmitter with Hands-free Car Kit Charger, which supports USB driver and TF card. It can automatically play and transmit the MP3 files of USB driver and TF card. Built-in microphone with Echo cancellation and noise suppression (CVC) technology can offer your clear talking and wonderful music. Two USB charging ports (output 5V-2100MA) are provided for you to get your devices full charged in short time.

Features:

Bluetooth Function:
With advanced Bluetooth module, it supports stream music from your phone or tablet via Bluetooth. It also supports connect your phone automatically after paired successfully for the first time.

Hands-free call:
With built-in Mic, you can make hands-free calls easily and safely.

2 USB Charging Ports:

With two USB charging ports, you can charge your phone or other devices simultaneously.
No need to worry about power shortage.

Specifications:

- Bluetooth version: V3.0 + EDR
- Frequency: 20h~20KHZ
- Sensitivity: -42db+/3db 360
- Voltage: 5V +/-0.5
- Working current: 45ma (max)
- Stand-by current: 25ma (max)
- Frequency: 2.402~2.480 ghz
- Effective range: 5m
- Sensitivity: -92dBm
- Rf output: 4dBm
- FM frequencies: 87.5MHz~108.0 MHz
- Transmitted power: 87dBuv~107dBuv
- Effective range: 2m

Operation Guide:

- Plug the FM transmitter into your car cigarette lighter socket for power and please find search this device with the name of T20.
- Find an empty station and keep the FM transmitter and car FM radio at the same frequency.
- Please press the "Next" and the "Phone" buttons together for 3-5 seconds, then you can change the language.
Note:

Please change another stable channel if it has a lot of static because of frequency conflict.
Please press the knob to adjust the channel when the screen displays the channel interface.

Package Included:

1 x FM transmitter
1 x User manual

5. Nulaxy KM18 [Upgraded Version] Bluetooth FM Transmitter for Car, 1.8" Color Screen Radio Adapter W QC3.0 & 5V/2.4A Charging, Handsfree Call, Support Microsd Card, Aux Play, EQ Modes

Feature

UPGRADED VERSION OF CLASSIC KM18: Upgraded with 1.8" TFT color display and buttons offers a wider visual interface for more information. Output QC3.0 fast charge port and 5V/2.4A USB port efficiently gets your IOS or Android devices fully charged.
MULTI-FUNCTIONAL: Supports fast forward & fast backward, 3 music input sources, 4 play modes and 5 EQ modes; Nulaxy newest bluetooth car adapter also built-in microphone and supports hands-free talking and private calls.
CRYSTAL CLEAR MUSIC FROM 3 SOURCES: Supports AUX/ BLUETOOTH/ TF CARD. It adopts advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind.
EXTRA FEATURES: Supports Repeat All/ One/ Random/ Folder. Smart QC3.0 USB charges compatible devices up to 4x speed of the conventional car charger. Built-in over-current, over-voltage, intelligent temperature control and short circuit protection.
SAFETY FUNCTIONS: Safety first. Nulaxy equipped it with a voltmeter to show you the condition of your car battery. Voltage should be between 13.7V to 14.7V when your car is on and moving. 12.2V to 12.8V when your car is parked and ignition is off.

6. VicTsing Bluetooth FM Transmitter for Car, Wireless in-Car Radio Transmitter, Music Player Car Kit with Power Off, Stereo Sound, Hands-Free Calls and 2 USB Ports Support USB Flash Drive

Feature

Super easy to use & Dual USB Ports Plug-and-play usability, this FM transmitter bluetooth is super easy to install and set up. With 5V/2.4A USB charging port can get your devices like smart phones and other devices full charged in short time, and the other one with Music icon is designed for reading music files.Also you could charge two devices simultaneously with this Bluetooth FM transmitter for car.
2 Music Playing Modes with HI-FI Stereo Sound You are able to enjoy music feast in your car both via bluetooth function and U disk (MP3, WMA, WAV, FLAC format supported). The bluetooth car adapter support for Bluetooth A2DP, AVRCP, HSP and HFP profiles makes crystal sound quality within reach.
Crystal Hands-free calls & Wide compatibility The advanced CVC interference and noise cancellation technology creates full duplex sound as well as suppresses noise and wind. The bluetooth fm transmitter for car built-in high-sensitive microphone supports hands-free calling when driving. Simply press 'CH' to switch to a private call to better protect your privacy.The car radio transmitter is compatible with most devices on the market that Bluetooth enabled and 12-24V cars/trucks.
Voice Navigation and Memory Function No more worry about not finding your way! Featuring providing crystal clear voice navigation and self-adjusting volume for navigation when playing music, it will make your road trip always full of pleasure. Also it will automatically connect to the last paired smart device when you turn on the car radio transmitter .
One button Power off & Elegant LED Screen Long press "CH"button to Power Off : to Save power and prevent it from draining your car battery. Don't need to take FM transmitter in and out of the car socket.Comes without any blind spots, this screen is extremely easy to read at night and in daytime, no longer interfering with your focus on driving. The car bluetooth adapter large Knob/Call Button with a circle of blue backlight at the bottom greatly simplifies your operation for safer driving.

Description

Enjoy crystal clear music and hands-free calling on the go.

Flexible Goose Neck
With a flexible hose, the screen of bluetooth radio transmitter can be adjusted according to different using habits, ensuring it's the best viewing angle for your safe driving.

Easy to use:
1. Simply plug the product into car cigarette socket, turn your car FM radio on, find the empty radio stations(not the local radio station) , then adjust the bluetooth fm transmitter frequency to be the same frequency as that of the car radio.
2. How to adjust bluetooth car transmitter frequency: Short press the CH button and rotate the knob clockwise to increase the frequency while rotating the knob anticlockwise to decrease the frequency.

Specifications:
Connection Technology: Bluetooth
Input Voltage: DC 12 V~24 V (MAX Input 9-26 V)
USB Output Voltage: DC 5V5%
Standby Current: 50mA (when not charging for smartphone or other devices)
FM Frequency Range: 87.5-108.0MHz
Compatible Bluetooth Protocol: A2DP/AVRCP/HSP/HFP
Compatible Music Format: MP3/WMA/FLAC/AAC/WAV
Support U Disk: MAX 32 G

Package Included:
1 x Bluetooth FM Transmitter
1 x User Manual

7. Bluetooth FM Transmitter, Vproof in-Car Wireless Radio Transmitter Adapter Music Player Car Kit W Blue Circle Ambient Light, 2 USB Ports, Hands Free Calling, TF Card & USB Flash Drive Support

Feature

2 USB Ports Car ChargerComing with 2 USB ports(5V-2.4A and 5V-1A), you can get 2 of your devices charged simultaneously. Via the USB port with music icon, you can not only enjoy music via the USB disk, but also charge one of your device.
3 Music Play ModesWith CVC noise cancellation technology, you can enjoy the crystal clear full duplex sound, you could enjoy music via 3 methods: 1).Play music from Bluetooth-enabled devices; 2).Stream music from SD card(32GB); 3).Transmit music from USB flash drive(32GB). MP3, WAV, WMA, FLAC, APE format supported
Hands-Free Calling & Navigation BroadcastOne click the MFB button to answer/redial/hang up or reject calls; Seamlessly switches between incoming calls and music. Besides, this fm transmitter supports navigation App on your phone, you do not need to look down the phone to ensure safe driving.
Car Battery Voltage Detection & Blue Ambient LightThe FM transmitter will display car's voltage when plugged into the cigarette lighter. Keep abreast of car battery health at all times to avoid problems when driving. With the circle of blue backlight around this car charger, it will greatly simplify your operation for safer driving.
Wider Range & CompatibilityThis Bluetooth transmitter is well compatible with iPhone, iPad, Samsung, HTC, Blackberry, Sony, Tablet and other Bluetooth enabled devices such as MP3, MP4 Player. Also, with the wider range from 87.5MHz - 108 MHz, you can get more stable and consequent music experience without interference.

Description

Vproof Bluetooth FM transmitter---enjoy smarter life, safer driving!

Specifications:
FM Frequency Range: 87.5-108.0MHz
Bluetooth Version: V4.2
Input Voltage: DC12V-24V
Music Format: MP3,WAV,WMA,FLAC, APE
External Memory: SD card / U disk
Transmitting Distance: > 5M
USB Output: DC 5V/3.4A
SD and USB Flash Disk(Max capacity): 32GB

How To Use?
-1. Plug the FM transmitter into the cigarette lighter outlet, it will turn on automatically and show the battery voltage of the car.

-2. Turn your car radio to an unused FM frequency, then match this FM transmitter to the same fm station. FM channels 87.5 MHz - 108.0 MHz, 0.1MHz/step.

-3. Insert a USB flash driver, SD card or pair with Bluetooth FM transmitter('named T25') with your digital device to enjoy music or hands-free conversation.

Note:
1.When using, please find an empty station firstly and keep the FM transmitter and car FM radio at the same frequency.

2.Please change another stable channel if it has a lot of static or noise for the frequency conflict.

3.SD card and USB disk can support MP3, WMA, WAV, FLAC, APE format, if there is no USB disk and SD card, then just try the Bluetooth or fm frequency.

Package Included:
1x Bluetooth FM transmitter
1x User Manual

8. Nulaxy Bluetooth FM Transmitter for Car, 1.8" Color Screen Wireless Radio Adapter Handsfree Car Kit with QC3.0 & 5V/2.4A Charging, Support USB Drive, microSD, Aux, EQ, Car Battery Reading- KM29 Black

Feature

[UPGRADED LANDSCAPE SCREEN]: KM29 with 1.8" TFT color display screen and buttons offers a wider visual interface for more information. Output QC3.0 fast charge port and 5V/2.4A USB port; rotate the gooseneck 350-degrees for a comfortable viewing angle.
[Multi-Functional]: Supports incoming call announcement, fast-forward & fast-backward, 4 music input sources, and 5 EQ play modes; The Nulaxy KM29 has a built-in microphone and supports hands-free talking and private calls.
[Crystal Clear Music from 4 Sources]: Supports Aux/ Bluetooth/ USB/ TF Card. KM29 car radio transmitter adopts advanced interference and noise cancellation technology - CVC technology creates full duplex sound and suppresses noise and wind.
[Extra Features]: Plug-in or press any button to power on. Smart QC 3.0 USB charges compatible devices up to 4x speed of the conventional car charger. Built-in over-current, over-voltage, intelligent temperature control and short circuit protection.
[Safety Functions]: Safety first. The KM29 is equipped with a voltmeter to show you the condition of your car battery. Voltage should be between 13.2V to 14.7V when your car is on and moving. 12.2V to 12.8V when your car is parked and ignition is off.

Description

Nulaxy KM29 is the first one with upgraded landscape screen design under Nulaxy brand, which has been consolidated by uniting quality and high technology.
1) answer calls phones safely with one click;
2) listen to music from your phone, MP3 player, tablet, laptop, TF card and connected devices via aux cable in the sound of your car;
3) control the quality of your car battery With Our voltmeter function;
4) charge your devices through the smart QC3.0 USB port up to 4x Speed of the conventional car charger;
5) ideal size of 1.8 TFT color screen to view your telephone calls, music, car battery voltage and other information with more comfort and quality.
bring your car to new generation in a simple and safe way!
nulaxy, driving you safer and better.

9. LoHi Bluetooth FM Transmitter for Car, Wireless Radio Adapter Hands-Free Kit 1.8''Color Display with Auto Search FM Blank Channel & QC3.0 Fast Charging Function, Support USB, TF Card, AUX Input/Output

Feature

FULL-AUTOMATION: Our FM transmitter bluetooth is the only one on the market which can automatically and accurately find blank FM channel after you press "AUTO" button, easier for you to enjoy crystal music or pick up high clear hands-free calls in car, say goodbye to other clumsy FM transmitter.
MULTIFUNCTION: Upgrade to 3 USB ports and power off Settings. Two fast charging USB ports support QC3.0 and 5V / 2.4a, which can charge two devices efficiently at the same time. The other one is used for USB music playback.The power off setting protects the car battery without unplugging the radio transmitter.
THE MOST HUMANIZATION DESIGN: 1.8'' Large color LCD screen of bluetooth adapter for car & 360 degree rotatable goose neck to get more comfortable view of the incoming phone number, FM frequency, song name, connected bluetooth device, etc.
UNIQUE 5 EQ MODES CUSTOMIZED: The bluetooth car adapter supports 4 music play modes AUX/ BLUETOOTH/ USB/ TF CARD, also you can customize music from USB drive and TF card to normal, classic, pop, rock and jazz EQ style. Adopted CVC and anti- statics technology, create full duplex sound quality, grants you lossless music in car.
SAFETY AND WARRANTY: Safety first, LoHi FM transmitter equipped with a voltmeter to show you the condition of your car battery. (Normal value should be between 12 ~ 14.8V, 13.2V ~ 14.7V when you start the engine, 12.2V ~ 12.8V when your car ignition is off). Order now! Enjoy LIFETIME WARRANTY and friendly customer service.

10. JETech Wireless FM Transmitter Radio Car Kit for Smart Phones Bundle with 3.5mm Audio Plug and Car Charger (Black)

Feature

Compatible with smartphones and tablets with a 3.5mm headphone jack, including iPhone 6s/6/SE/5s/5/4S/4, iPad, Samsung Galaxy and more
Plays music or audible books from audio devices through your car stereo system. Preserves high-fidelity sound via FM radio signal
Extra built-in USB port charges your smartphones, tablets, GPS and other devices while driving
Features an easy-to-read display and tactile buttons. Simply connect your device through the 3.5mm jack, set an idle FM channel on the transmitter, and tune the car radio to the same channel
Package Contents: JETech FM transmitter, instructions, lifetime warranty card

Description

JETech Wireless FM Transmitter Radio Car Kit for Smart Phones bundle with 3.5mm Audio Plug and Car Charger

Conclusion

By our suggestions above, we hope that you can found the best wireless radio transmitter for car for you. Please don't forget to share your experience by comment in this post. Thank you!