Wireless WIFI: support 3G 4G 5G wireless signal , the signal is bluetooth phone: support for answering calls/making calls, support for reading the phone book to the mobile phone.Mobile phone interconnection: mirror connection, support one-way operation of iOS devices, and two-way operation of Android phonesUSB function: support two USB channels (media playback, file transfer, DVR device connection)GPS navigation: support online/offline navigationAndroid main chip: 8227L -core Operating memory: 2G Storage: 32G Version: 10.0Working voltage: DC 12V. Working temperature: -20 to +70 degreesScreen size: 9 inches, resolution: 1024*600Touch screen: 2.5D tempered touch screenRadio: radio chip 8227L FM 87.5 MHz-108 MHzRadio frequency: European frequency (default), American frequency and Russian frequency are optionalVideo output: support. Audio output: support. Reversing input: support.Reversing detection: Support reversing detection control. Brake reminder function: Yes.Reset button: touch the reset button switch with a small sharp objectSupported formats: JPEG, GIF, PNG, BMP, JPGSupported video formats: MP4 / MP5 / MKV / /RMVB /1080PSupported audio formats: MP3 / WMA / WAV / FLACOutput terminal introduction: 2 audio input, 1 AV video input, 1 rear input, 1 video output, 2 audio output, 1 SUB subwoofer output, red is standard: 4 RCALanguages: , Simplified , Japanese, , English, Spanish, French, Italian, Dutch, Polish, Portuguese, Vietnamese, Russian, , , Persian, Bahamian, Languages, Danish, Hungarian, Romanian, Finnish, Swedish, Uighur, Greek, PersianColour:blackMaterial:ABSPackage Contents:1x Car Radio1x Power Cable2x USB Cable1x GPS anten1x RCA Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.