1. Support radio, 2. U disk (audio/video/picture) 3. Bluetooth function, 4. RCA audio output can be connected to subwoofer 5. Support reversing rear view function, 6. Video input 7. The car steering wheel learning function, 8. Mobile phone interconnection Android AUTO/Apple CarPlay 9. Colorful lights, 10. Dual USB ports (one for charging, one for music) Specifications Model: F170C System: Allwinner melis system Radio frequency: FM 87.5~108.0MHz Output power: 60Wx4 Bluetooth version: version 5.1 (default name: Carkit) Running memory: 533M Languages: English, Chinese, Spanish, Portuguese, Russian, German, French, Polish, Turkish, Arabic, Hebrew, Italian, Czech, Japanese Screen size: 6.2 inches Installation size: 178x52MM Host depth: 50MM Audio format: MP3/AAC/APE/OGG/M4A/RA/WAV Video format: H263/H264/H265/DIVX HD(720P 1080I 1080P)AVI/FLV/MKV/MPEG/MP4/WMV9/VC/ASF/TS/QT Image format: JPEG/PNG/BMP/GIF/TIFF Colour: As Shown Material:plastic+metal Package Contents: 1X Host 2X power cord 1X remote control (without 2X AAA batteries) 2X disassembly key 1X 12LED camera 1X English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.