Bluetooth FM Tranmitter Car Adapters let you connect your car audio to your smartphone through FM signal. The benefit of this inexpensive gadget is you can enjoy the audio files and calls on your car audio system without any additional wiring or setup. This Bluetooth car kit is a plug and play device that is suitable for any Car audio system that has an FM radio and Car Cigarette Lighter port for the power supply.
These Bluetooth FM Transmitters are coming with USB charging port for your devices and some of them with GPS to locate the car and battery monitor. This Bluetooth aux adapter can play songs and other audio files from your smartphone, MicroSD cards and even from USB Flash drive.
We listed the best Bluetooth Car Adapters to convert your car audio system to a Bluetooth enabled the audio system.
Nulaxy Wireless In-Car Bluetooth FM Transmitter
Key features: Works with iOS, Android, MP3, MP4 Players |  1.44” Inc Display | Incoming Phone Number Display | 5V-2.1A USB Charging | Built-in microphone | TF/MicroSD Card Slot | Support AUX output/input | Buy from Amazon
For those who want to know how this device work, please visit our guide  How to Connect Bluetooth Adapter to Car Audio System?
VicTsing Bluetooth FM Transmitter
Key features: Works with iOS, Android, MP3, MP4 Players | Â 1.44” Inc Display | Incoming Phone Number Display | 5V-2.1A USB Charging | Built-in microphone | TF/MicroSD Card Slot | Support AUX output/input |Â Buy from Amazon
This Bluetooth car adapter works with all Bluetooth enabled devices like smartphones, MP3 Players, iPods, Tablets, etc. In addition to this, you can store songs on micro SD card in formats like MP3, WMA, WAV and play directly with this Car FM Tranmistter. Just like this SD card playback features, one of the USB port of this Bluetooth car kit supports USB flash drive to play media directly through the USB port.
CHGeek Wireless In-Car Bluetooth FM Transmitter
Key features: Works with iOS, Android, MP3, MP4 Players | Hands-free call | 5V-3.4A USB Charging | Built-in microphone | TF/MicroSD Card Slot | USB Flash Reader | Battery Voltage Display | Buy from Amazon
CHGeek Wireless Bluetooth FM Transmitter is compatible with iPhone, iPad, iPod, Blackberry, Sony, Samsung and other Android Phones. This car adapter can play MP3 from USB flash drive or TF card (microSD). In addition to this, this Bluetooth Car stereo device can detect our car battery voltage level and alarm you in case of low battery. This Bluetooth car kit is ideal for a handsfree operation to play a song or initiate a call with your mobile phone. The device auto-detect feature is best to detect the charging devices on the USB and charge battery at an optimum level based on the device.
Related: Android Auto: How to Get and Enable Android Auto in your Car?
Roidmi-2S Wireless 5-in-1 Smart In-Car
Key features: Works with iOS, Android, MP3, MP4 Players | Compact Design | Mic with Echo Cancellation& Noise Suppression | Hands-free call | HI-FI Stereo Sound Quality | 5V USB Charging | Built-in microphone | TF/MicroSD Card Slot | USB Flash Reader | GPS Nav Audio | Buy from Amazon
Roidmi-2S Wireless is a small footprint Bluetooth car stereo adapter that is compatible with smartphones and Bluetooth media players. The built-in mic with noise cancellation offers the maximum clarity while you make calls from a smartphone through this Bluetooth car kit. This Bluetooth Aux adapter is coming with Bluetooth 4.2 for the best efficiency and eliminates onboard displays for a compact design. This support full FM range from 87.9-107.9 MHz to select for your car radio. This will support GPS navigation audio and also equipped with battery monitor to alert you on when your car is running on low battery.
LDesign Wireless In-Car FM Adapter Car Kit
Key features: Works with iOS, Android, MP3, MP4 Players | HI-FI Stereo Sound Quality | Mic with Echo Cancellation& Noise Suppression | 5V-2.1A USB Charging | Built-in microphone | TF/MicroSD Card Slot | Support AUX output/input | Buy from Amazon
LDesign Bluetooth Car Adapter supports USB driver and TF card. This Car adapter can play MP3 files from USB Flash Drive and TF Card. The Bluetooth device has A2DP, High-performance built-in Microphone with Echo Cancellation and Noise Suppression (CVC). This device supports USB or Bluetooth including iPhone, iPods, Samsung Galaxy, Google Nexus, GPS, and tablets.
CHGeek Wireless In-Car Bluetooth FM Transmitter
Key features: Works with iOS, Android, MP3, MP4 Players | Mic with Echo Cancellation& Noise Suppression | Hands-free Mode | HI-FI Stereo Sound Quality | 5V/2.1A USB Charging | Built-in microphone | TF/MicroSD Card Slot | USB Flash Reader | GPS Nav Audio | Battery low voltage Alarm | Buy from Amazon
This Bluetooth FM transmitter works with most Bluetooth enabled devices, such as iPhone, Samsung, HTC, LG, Blackberry, Tablet, and iPad, etc. In addition to this smartphone support, this Bluetooth aux adapter can play MP3 format songs directly from an attached micro SD card. The dual USB port supports charging the device and also play songs from USB Flash drive. The Smart Car Finder is one of the excellent features coming with this Bluetooth car kit, that can locate your car with the help of an iOS/Android app. This car locator is good to locate the car from the parking lot and busy mall parking area. This amazing Bluetooth supports Hands-free calling and also monitor your car battery level to alarm on low battery.
Also see: How to Change Bluetooth Audio Codec of Your Android Device
Anker Roav SmartCharge Car Kit
Key features: Works with iOS, Android, MP3, MP4 Players | Bluetooth 4.2 | Car Locator with Apps | Aux Output | Hands-free Mode | HI-FI Stereo Sound Quality | 5V/2.1A USB Charging | Built-in microphone | TF/MicroSD Card Slot | USB Flash Reader | GPS Nav Audio | Battery low voltage Alarm| Buy from Amazon
This Bluetooth FM Car adapter lets you stream the audio directly from smartphones and Bluetooth devices. This built-in car locator helps you to find out your can form the busy parking lots and street parking with the support of smartphone apps. This Car FM transmitter works with Bluetooth 4.2 to make sure the maximum efficiency and up to the mark standard.
Now, this is the time to relax and enjoy; you’re going to convert your car’s Audio System to a Bluetooth Hands-Free system without any additional wiring or long time setup. You can enjoy the smartphone and SD card songs on your car audio in addition to the bonus features like low battery monitor and car locator with this Bluetooth FM Car Adapters.
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