Feature:1. support hands-free calls.2. support advanced audio transmission mode.3. support the clock indicating while the power is off.4. high quality digital stereo FM radio FM1-FM2-FM3 support from three band radio store, and canPreset 18 radio stations. (Radio frequency: 87,5-108MHz)5. Support USB or TF audio card reader: MP3 or WMA or WAV formats and so on.6. Media folder playback function7. remote control support. Rotary electronic volume control MP3 play supports pause or Preview or Repeat or Random Play and 10 tracks up or down selections.8.Electronic type bass or treble or left and right balance or volume control balance front and rear AUX audio input hole and RCA audio output hole of the rear terminal L or R.9. 4 band high power output (high power speakers)10. work voltage: DC12V11. APP Control12. Voice assistant13. Steering wheel control