1. Bluetooth hands-free call USB/USB with charging function 3.1A
2. Echo cancellation and noise processing during phone calls
3. Stereo Bluetooth and FM transmission technology
4. Support USB/TF card/Bluetooth function
5. Support MP3/WAV format music
6. Automatic power off memory function
7. Power supply of cigarette lighter: DC12V-24V voltage power supply
8. Bluetooth version 5.0 FM Transmission frequency: 87.5 ~108Mhz
9. Voltage detection
10. Colorful atmosphere lights
