Free backup camera and external microphone are included!!!General:Operating system:Android 6.07 inch HD capacitive touch screen High resolution:1024*600pFront panel can be folded back up into the radio manually,not auto.USB:2 channels,up to 32GTF card :1 channel,up to 32GMulti-languageBrightness adjustmentCar logo selection1GB RAM+16G ROMBluetoothSupport hands-free call,downloading phonebook,searching calling history,playing bluetooth musicFree external microphone for clearer callGPS/NavigationOnline navigation:you can download map apps from google play store,like google,sygic,wazeOffline:North America Map pre-loaded,you also can save the offline map in microSD card setting for offline navigationYou can play music or watch videos while using navigation.Voice NavigationWIFIEasy to connect WiFi or hotspot from your smart phone.Mirror LinkPhotos,videos,online navigation maps can display on this high definition screen through pre-installed "EasyConnection" APP.Android Phone:via USB or WIFIIphone:via WIFIRear camera Free 170 degree wide angle waterproof HD rear view camera is includedAuto display reverse imageRadio(AM/FM)AM Frequency Range:530-1710KHzFM Frequency Range:87.5-107.9MHzOther Feature:Support OBD2 function via bluetooth (need extra device)Steering wheel controlSelect color of button lightSetting wallpaperRCA video output:2 CHRCA audio output:2 CHRCA audio input:1CHSubwoofer OutSupport install APKEQ settingAudio format :MP3,APE,FLAC,AAC,WAV etc.Video format :RMVB,RM,MP4,MOV,AVI,MKV,MPEG,3GP,FLV etc.Support 1080PImage formats :JPG,GIF,PNG etc.Package:1*car stereo head unit1*power cable1*GPS antenna1*backup camera1*external microphone1*user manual2*metal kit