Is touch screen : YESBuilt-in Screen : YESTF/Micro SD Slot : 0Din : Double DinRAM : 6GInterface : For Citroen C4Special Feature : Wifi Function,Support Steering Wheel Control,Support 4G Network,Support Can-BusOperating System : AndroidOut Power : 50x4Voltage : 12VMaterial Type : Abs+Item Weight : 1.5kgItem Size : 247*228*140Max External Memory : 128GROM : 32GSpecial Features : Built-in GPS,Mobile Phone,MP3 Players,Voice Control,DSP,Carplay,Android Auto,Reversing Input,Split ScreenDigital Media Format : CD,DVD-R/RW,DVD-RAM,Video CD,Mp3,MP4,WMA,JPEGOSD Language : Chinese (Simplified),Chinese (Traditional),Albanian,Arabic,Azeri,Irish,Estonian,Belarusian,Bulgarian,Icelandic,Polish,PERSIAN,Boolean text (Dutch South Africa),Danish,German,Russian,French,Filipino,Finnish,Georgian,Haitian Creole,Korean,Dutch,Galicia,Catalan,Czech,Croatian,Latin,Latvian,Lithuanian,Romanian,Maltese,Malay,Macedonian,Norwegian,Portuguese,Japanese,Swedish,Serbian,Slovak,Slovenian,Swahili,Thai,Turkish,Welsh,Ukrainian,Hebrew,Greek,Spain's Basque,Spanish,Hungarian,Armenian,Italian,Yiddish,Hindi,Urdu India,Indonesia,English,VietnameseResolution : QLED 1280*720Display Size : 9"For Vehicle Brands/Model : CitroenCertification : CECPU: : MTK 8227 - 4coresubwoofer output: : SupportAV-OUT: : WiFi version support, 4G version not supportRCA cable: : 7channels including subwoofer cablescreen display: : QLED9inch 2.5D screen, QLED 1280*720 resolution 4G version IPSINPUT Interface: : 2*USB RCA BluetoothWIFI: : Built-in4G LTE SIM: : optionalSteering wheel control: : supportMirror link: : Iphone & Androidmicrophone: : Built-inexternal microphone: : optionalGPS Navigation map: : Built-in offline map free update (support navitel/Igo)Bluetooth phone book: : supportBluetooth music: : supportOS language: : support 46 countries, Russian, Spanish, Portuguese, French, Hebrew..System: : AndroidSplit screen/picture in picture: : WIFI version and 8 core 4G SIM support,4 core 4G SIM does not supportRDS : support