with Wifi, Android system, touch pad, 7 inch Central Processing Unit (CPU)Telechips 8902, 720MHz ARM11Operation System (OS)Android 2.2ARMDDR2 256M LCD & Touch screen8” ... . Power On/Off button on IO board2. Menu button on IO board3. Return button on IO board4. Lock button on IO boradG-sensor ... ,MP4,3GP,AVI,RMVB etc..AccessoriesCharger/ User Manual 7 inch Touch Pad with Android system 4:3 for OEM