Introduction: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.Features1.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 functionTechnical ParametersRated operating voltage:12VWorking voltage limits:9~26VUSB Output:5V/2AWorking Temp:0~50��Support Play format:MP3 WMASNR:>60dBDistortion:<0��1%Frequency Response:20Hz-15KhzLeft and right channel separation:��60dBBT Version:Version 2.0Bluetooth sound processing:A2DP(Advance Audio Distribution Profile)Bluetooth transmission distance:10M-15MBluetooth microphone effective range:0.5~2MFM transmission frequency:87��5~108MhzFM transmitter mode:Stereo digital PLL lockingPackage Content1*Bluetooth car FM transmitter1*3.5mm audio cable1*User manual