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.
