1. Hands-free call, 3.1A USB / PD port charger
2. Elimination of echo and noise processing during phone calls
3.FM stereo transmission technology
4. Support USB flash drive / TF card / Bluetooth music player function
5. Support MP3 / WMA format music
6. Auto power off memory function
7. Cigarette lighter power supply: voltage -24V DC 12V
8. FM transmission frequency: 87.5 ~ 108MHz
9. Voltage detection
10. Colorful taillights.
