... 7 inch tablet pc with call function OS: android 2.3 7 inch tablet 512mb/4G 7 inch tablet pc with call function Feature:OS: android 2.37 inch tablet ... Supply3.7V3100mA, chargeable& renewable battery, last for 6-7 hoursG-sensor Buit-inInput modeAndroid Virtual KeyboardPackaging & accessoriesColor box ... DIVX, XVID, rm, rmvb, MKV, WMV, MOV, DAT, VOB(DVD), PMP,MPEG, MPG, FLV, ASF, TS, TP, 3GP,etc ...