feature: 1. 7-inch high-definition touch screen, dynamic menu interface. 2. Support SD card, high-speed USB2.0 interface compatible with a variety of U disk, mobile hard disk, hot swap. 3. card type full-featured remote control. 4. Loudness switching, the deep bass echo compound is amazing! 5. Hardware electronic sound (EQ) processing, multiple EQ modes, adjustable high and low sounds; 6. All-digital electronic control station search, high-performance digital tuning FM radio automatic scanning, 18 radio stations memory 7. Xu Bo's song memory! Let you play MP3 without restarting the first song; 8. Support random play, repeat all, repeat single, repeat directory. 9. The AUX audio input interface can be used for external audio input such as MP3, mobile phone, and music player. 10. USB supports large current output, which can charge mobile phones (note: some mobile phones may not be able to charge, please know); 11. Support mobile phone wired carplay Specification: 1. Power supply