1. Bluetooth hands-free call
2. Echo cancellation and noise treatment when talking.                
3. stereo Bluetooth and FM transmitting technology.                
4. Support USB/TF card/Bluetooth function.                 
5. Support MP3/WAV format music.                   
6. automatic power-off memory function.                      
7. Cigarette lighter power supply: DC12V-24V voltage power supply.    
8. Bluetooth version 5.0 
9. FM transmitting frequency: 87.5~108Mhz   
10. Voltage detection                               
11. seven-color ambient light  
12. USB Charger function: 3.1A+1A