DescriptionFeatures:100% brand new and high quality.1.Adjustable to any angles ，and fit to all types of Vehicles2.Full frequency FM transmitter3.Digital Display4.Support Line audio input5.With power off switch (USB direct connect)6.Support U Disk Player7.Supports MP3， WMA format music8.Bluetooth answer， hang up， reject， redial calls and other functions9.Bluetooth stereo music play10.Echo cancellation and noise suppression (CVC) technology during a call11.Supports dual USB output voltage， the maximum output 5V / 2A12.Automatic power-off memory functionSchematic Description:1.Volume plus or minus/Down or Up song/CH+ CH-2.Power Indicator3.Line Enter Jack4.Power Switch5.Answer/Redial/Play/Pause6.Mic7.Hang Up/FM/Volume Mode Switch8.Digital Display Window9.Point Butts 9V-24V10.U Disk Player/ USB Out 5V/2A(max)11. USB Out 5V/2A (Max)