... flash 2:Google Android 2.3 Gingerbread 3:3G wifi 4: USB,TF,HDMI Specification of M13 ... *USB 2.0 OTG support 3G,USB,Keyboard etc1*enlarge memory card:TF card support 32GB 1*3.5mm ... ),china mobile TD-SCDMA,CHINA UNICOM WCDMA,Telecom EVDO,3G netFunction, FeturesAccelerometer the screen to be automatic four ... .7V 3200mA/h life of batteryWifi about 4hrs,3G net work,about 3hrs.Power Adapterinput:AC100-240V ...