BC09B Handsfree 5V/2.1A USB Car Charger Bluetooth Car Kit FM Transmitter MP3 Music Player

C09B Handsfree 5V/2.1A USB Car Charger Bluetooth Car Kit FM Transmitter MP3 Music Player  Feature: 1. Suitable for all types of vehicles 2. Full FM channels from 87.5~108.0MHz 3. Large digital LED display 4. Supports Car Accumulator voltage display and Charging current display 5. Supports Micro SD card 6. Supports MP3 format music 7. Answers/ hangs up/ rejects/ redials the call 8. Supports A2DP 9. Echo cancellation and noise suppression (CVC) technology during a call 10. Dual USB charging ports; 2.1A maximum output 11. Auto power-off memory function 12. Charging agreement Specification: Model BC09B Rated working voltage 12-24V Limit working voltage 9-26V USB output 5V /2.1A Working temperature 0-50C Charging identification Support Play format MP3 Battery voltage display accuracy Error1V Load current Error0.1A SNR >60dB Degree of distortion 60d Bluetooth version Version 3.0+EDR Bluetooth sound processing A2DP (Advance Audio Distribution Profile) function supported     Bluetooth transmission distance