1. Radio function. Read U disk (audio/video/picture). Video input function 2. Bluetooth function.RCA audio output 3. Reversing rear function. The original car steering wheel learning function 4. Mobile phone interconnection, wired Android AUTO/wired CarPlay. Colorful lights 5. RDS function.USB charging function. Subwoofer output. Power supply reverse polarity protection function Specifications Model: F9070 (7 inches) System: Allwinner system Radio frequency: FM 87.5~108.0MHz AM522-1620KHz Output power: 60Wx4 Working voltage: 12~14.4V Bluetooth version: version 5.1 (default name: Carkit) Running memory: 533M Storage memory: none Installation size: 222x132MM (suitable for machine size) depth: 30MM External microphone interface: support Reset button: support Audio : MP3/AAC//OGG/M4A/RA/WAV Video : H263/H264/H265/ HD///MKV/MPEG/MP4/WMV9////QT : JPEG/PNG/BMP/GIF/ Languages: English, Chinese, Spanish, Portuguese, Russian, , French, Polish, , , , Italian, , Japanese Material: Plastic + Metal colour: As shown Package Contents: 1 x 1 x high and low power cable + protocol box 1 x USB charging extension cable 1 x Antenna 1 x Radio Antenna Adapter 1 x 21 Button Silicone Remote Control (without battery) 1 x 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.