Reddit reviews Bluetooth FM Transmitter for Car, Wireless Bluetooth Radio Adapter with Hand-Free Calling and Dual USB Car Charger

【HIFI Clear Sound Quality】With CVC & A2DP technology, the built-in microphone provides you with a clear full duplex sound quality after connect Bluetooth. Automatically switch to hands-free mode from music playing status when receiving a call【One Key Operation&Hands-Free Calling】Save you effort of controlling music and phone call while driving and make driving be easier and safer. Rotate the screen to switch songs or to adjust FM frequency. Short press to play or pause. Answer/hang up/reject a call by pressing the button.Built-in microphone, the FM transmitter offers you hands-free talk for safe driving【High Safety Standards】Built-in Anti-interference chip and protective circuits prevent the product and your devices from overheating, overcurrent,overvoltage, or short-circuiting. Detect and display the voltage of car battery when power is on【Smart USB Car Charger】Charge your USB enabled devices by the dual USB ports which output 3.4A total. Built-in smart charging IC, will auto detect your devices and charge them at optimal speed. Note: If you connect 2 USB ports together, then pls charge your Tablet by “A” USB port. To avoid the interference while charging your phone and listening to your local FM station, please tune your car radio to 87.5~90.0MHZ and tune this kit to 108.0MHZ【Universal Compatibility】 This Bluetooth FM transmitter can be paired with all Bluetooth enabled devices, such as iPhone, iPad ,Android smart phones, MP3 and MP4 player