BRILLIANT BLUETOOTH FM TRANSMITTER - The universal wireless Bluetooth FM transmitter comes with a hands-free car kit charger, support for USB drive and TF card. It can automatically play and transfer MP3 files on USB Flash Drive and TF card. 4 music playback modes, HI-FI STEREO SOUND QUALITY - Bluetooth A2DP sound processing, built-in high-performance microphone with echo cancellation and noise reduction (CVC) technology that can offer you clear calls and wonderful listening experience music. SMART USB PLUG FOR READING AND FAST SAFE CHARGING – This multi-functional FM transmitter comes with USB reading and charging function to allow you to play music from your phone or tablet while charging. Safe output current will never damage your devices. Hands-free calling, safe driving - simply connect your mobile or tablet to the Bluetooth adapter and its hands-free system can free your hands while answering calls and allow you to drive safely. No more worries about receiving incoming calls while driving on the roads WIDE COMPATIBILITY - Suitable for all types of vehicles and universal design for all types of devices, this in-car wireless FM car adapter works perfectly as a hands-free calling device and car charger for all USB or Bluetooth devices, including iPhone, iPod, Android or other smartphone and tablets.