Car7 Wireless Car Charger

 Full frequency FM transmitter. . With digital display. . Supports line audio input. . With power off switch(USB direct connect) . Supports U Disk TF card player. Features . Supports MP3,format music. . Wireless answer ,hang up,reject,redial calls and other functions. . Wireless stereo music play. . Echo cancellation and noise suppression(CVC) technolony a call. . Supports USB output voltage,the maximum output 5V/3.1A . Automatic power-off memory function.