... 512 DDR2, up to 1GB OS Android2.3, can be upgraded to 3.0 WIFI 7" Tablet PC ITEM NO.: ... TF card, up to 32GB OS Android2.3, can be upgraded to 3.0 screen 7.0 inch 800 * 600 ... Power On/Off , Menu, return Sound effect Speaker Microphone 3.5mm (stereo) headset jack , Battery 6000 MAH Office WORD ... OGG and so on eReader File Formats PDF, 3rd party SW, TXT, HTML,Text to speech, Dictionary, Thesaurus Photo ...