... BMP, PNGE-BookTXT, EPUB, PDF,WORD,EXCEL, POWERPOINTSRecordingBuilt-in MICToolCalendar,Alarm,Caculator,Notebook,weather + clock,RecordHandwritingsupportLoud speaker8Ω/1W ... high-quality stereo speaker *1Size200mmx157mmx10mmweight BatteryBuilt-in 3.7V/4000mAh rechargeable lithium-polymer battery,lasting play ... Android 4.0 DDR3 Capacitive 3G Multi-touch tablet PC