... OTG functionHDMIHDMI standard mini port,support HDMI1.3,support full screen output to HDMI DevicesUSBUSB2.0HOSTHOST1.1 connect with mouse,keyboard ... ,DC9V inputEarphone/Video3.5mm earphone+composite video outputOthersize270mm*180mm*15mmscreenResistive touch screen single-pointKey ButtonMENU,BACK,Power,Home,Volume+ -,WIFI switchWeight680gbattery6400mAH /3 ...