... external 3G 5.Support WIFI tablet pc with windows 7 CPURockchip 2918 1.2GOperation systemGoogle Android 2.3RAM512MB DDR3Storage Device8GB ... One host,one OTGBattery typeRechargeable polymer battery,4000MAH,15h,tablet pc androidUSB2*USBSpeakerD ClassMICYesMultimedia videoH.264,VP8,RV,WMV, ... 11MMColorsblack & silverCertificatesCE,FCC,ROHS,LVD of adaptorWarranty1 yearsWeight421g tablet pc android 7 inch