This product is blue-tooth car charger mp3 player for vehicle . Adapting professional-grade high-performance Bluetooth module ,built-in mp3/wma decoder chip make it capable of playing the music files in u disk,firing into the car stereo via wireless. Besides, during the Bluetooth connecting, play the phone's music and FM transmitter to Car Audio, perfect ,as the calls incoming automatically switches to the speaker state, call end then automatically back the music player. So you do not do any modifications, easily enjoying the music and handsfree phone calls while you are driving.
HOW TO ADJUST the Transmission Frequency: Hold the red/end call button, when the number flashes proceed to change the station with the +/- buttons, when you reached desired station press the green/call button once and ta-da!
EASY TO USE：pairing your phone and FM transmitter by bluetooth, insert device in the socket, switch to FM radio mode, make sure FM transmitter frequency the same as car's FM, then you can enjoy your music what you want !
1x Bluetooth car charger
1x AUX cable