【PLUG AND PLAY】: full 206 channels optional from 87.5-108.0MHz of the FM transmitter,plug it into your car cigarette lighter socket,turn on your car FM radio, find a blank station,match the fm transmitter bluetooth to the same frequency, pair it with your digital device to enjoy music.Unique red LED display enables you to read clearly day and night.【MULTI MUSIC PALYING MODES WITH HI-FI SOUND】: via bluetooth, TF card (MP3, WMA, WAV format supported) and USB flash disk(both up to 64GB) you can immerse yourself in music from different ways.Adopted with advanced interference and noise cancellation(CVC) technology to suppresses noise,wind and achieve best quality sound.【MEMORY FUNCTION AND RE-CONNECTION】: the fm transmitter wireless will automatically connect with the last paired bluetooth device when power on next time.Without turing off the car,no need to reopen the bluetooth or re-plug the FM radio transmitter,just press any button of the fm transmitter usb for re-connection after more than 3 minutes of disconnection.【FAST CHARGING AND HAND-FREE CALL】: comes with dual USB ports which output 3.1A, supports charging two devices simultaneously;built-in high performance Microphone,by clicking the call button, you can answer/ redial/ reject or end a call with hand free,one button to switch the incoming calls and music freely provides you safe driving.【UNIVERSAL COMPATIBILITY WITH 100% GUARANTEE】: Our transmitter for car can works with most bluetooth enabled devices,such as iPhone, iPad, Tablet PC, Samsung, LG, HTC, Sony and so on. And we promise you 3 years product warranty, 45 days product replacement or refund if you are not satisfied with the product.