TF/Micro SD Slot : 0Din : Double DinRAM : 1GBInterface : USB for Opel Astra H J 2004 Vectra Vauxhall Antara Zafira Corsa C D VSpecial Feature : Built-In Speaker/Microphone,Wifi Function,Support Steering Wheel Control,Support Can-BusOperating System : AndroidOut Power : 4*45W GPS 2 DinVoltage : 12VMaterial Type : Metial+Plastics for Opel Astra H J 2004 Vectra Vauxhall Antara ZafiraItem Weight : 1.29kgItem Size : Car Multimedia Player for Opel Astra H J 2004 Vectra Vauxhall AntaraMax External Memory : 32GROM : 16GSpecial Features : bluetooth,Built-in GPS,MP3 Players,Radio Tuner,Touch ScreenDigital Media Format : Mp3,MP4,WMA,JPEGOSD Language : Chinese (Simplified),Polish,German,Russian,French,Japanese,Spanish,EnglishResolution : 1024*600 Radio CarDisplay Size : 7"For Vehicle Brands/Model : OpelCertification : NONEModel Name : 2 din Car Radio for Opel Astra H J 2004 Vectra Vauxhall Antara Zafira