This product is a special Bluetooth car charger mp3 player.
Provides Professional high-performance Bluetooth Module.
Built-in MP3/WMA decoder chip that can transmit music flies inside the USB disk to car stereo.
Besides, during the Bluetooth is connected, you can play the phone's music to Car Audio, incoming calls automatically switches to the speaker's state, call end then automatically back the music player.
So you do not do any modifications, easily enjoying the music and answer the call in hand-free mode while you are driving, which ensure the driving safety while enjoying music.