Built-in CarPlay & Android Auto system: Connect with mobile phone to access mobile phone contacts, email, notification, map navigation, music, video and other information.Built-in Bluetooth function, can connect to phone, and handsfree calling, more when driving car,bluetooth music playSupport reverse rear view system: If connect to a car backup camera, the car stereo monitor will turn to rear view reversing details automatically and help driver a safe parkingAUX audio input interface supports external MP3, mobile phones, music players, etc.System:Allwinner systemFrequency:Default transmit frequency 88.60/89.50/91.50/93.00/93.90/95.10 MHz(optionalfrequency range 87.50-108.00MHz)Power:Built-in 1W speakerVoltage:12~30VTemperature:-10~60CBT version:Version 5.0(default name: -BT)Resolution:1280x720Screen size:4.7 inches(IPS display)Installation size:120x68MMShell size:126x83MMHost depth:25mmMobile Internet: Mirrorlink, CarPlay (wired + wireless),USB interface:USB1+USB2Audio output:Support (left channel + right channel)Audio format:MP3/AAC/APEOGG/M4A/RA/WAVVideo format:H263/H264/H265/ HD///MKV/MPEG/MP4/WMV9////OTImage Format:JPEG/PNG/BMP/GIF/Factory set password:113266Color: BlackMaterial: plastic + metalPackage Contents:1 x host1 x English Manual1 cable1 x Remote control(2X AAA Not included)1 x bracketOnly 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.