TF/Micro SD Slot : 0Din : Double DinRAM : 4GInterface : Double USB adapter inputSpecial Feature : Built-In Speaker/Microphone,Wifi Function,Support Steering Wheel Control,Support 4G NetworkOperating System : AndroidOut Power : 4 X 45W Universal Auto StereoVoltage : 12VMaterial Type : Aluminum alloy + ABS+touch screenItem Weight : 2.8kgItem Size : 9Inch Radio CarMax External Memory : 32GROM : 64GSpecial Features : Built-in GPS,Mobile Phone,MP3 PlayersDigital Media Format : Mp3,MP4,WMA,JPEGOSD Language : Chinese (Simplified),Chinese (Traditional),Arabic,Belarusian,Polish,PERSIAN,German,Russian,French,Korean,Czech,Portuguese,Thai,Turkish,Spanish,Italian,EnglishResolution : 2.5D Capacitive ScreenDisplay Size : 9"For Vehicle Brands/Model : MAZDAMazda Model : 55-Year : 2007,2008,2009,2010Certification : CEFeatures 1 : Support OBD2/DAB+Features 2 : Support DVRFeatures 3 : MP4/MP5 Players AutoradioFeatures 4 : Support Phone linkFeatures 5 : Support External microphoneFeatures 6 : Android SyetemFeatures 7 : GPS Navigation/Wifi FunctionFeatures 8 : 8Core support Intelligent voice4G 64G/28G 128G: : support wireless + wired Carplay+4G Internet1G 16G/2G 32G: : NO SUPPRT DSP/wireless + wired Carplay/4G Internet