Car Bluetooth 5.0 FM Transmitter Wireless Adapter Mic Audio Receiver Auto MP3 Player 2.1A Dual USB Fast Charger Car Accessories

Features Rated operating voltage: DC12V-24V   Working Voltage limits: 9-26V   USB1Output: 5V/2.1A   USB2 Output: 5V/1.0A , read USB Flash music.   Working Temp: 0-50   Support Play format: MP3   BT Version: Version 5.0 + EDR   Bluetooth sound processing: A2DP(Advance Audio Distribution Profile)   Bluetooth transmission distance: 10M   Bluetooth microphone effective range: 0.5-2M   FM transmission frequency: 87.5-108Mhz   How to use:   1. Insert the device to car cigarette lighter outlet, start the car for Power ON;   2. Tune the car radio and device to a same blank channel, such as if car radio is 87.5MHz, the device must be 87.5MHz to, press [CH] to adjust frequency;   3. Turn on the Bluetooth of phone, search "BT-Car" and Pair with it, pair successfully, play phone music, sounds will comes out from car speaker   TF/USB Flash Music playing:   If insert the TF card or USB flash drive, it will automatically play USB music;   Long press [Answer] button to swtich music mode between USB/TF/Bluetooth modes   Bluetooth mode:   Short press [Answer] button: Answer / Hang up call;   Long press[Answer] button: Reject call   Double press [Answer] button: Redial last phone number