Android System,Gravity Sensor,Google Map,WIFI,Card Reader,Touching Screen,7inch touch screen MID 1.Aluminium shell,7inch CPURockChip2808 (ARM926EJC+DSP) ... Frequency response: 20Hz to 20000HzVideo Player AVI, MKV(XVID/px/H.264), MOV, TS, M2TS, RM/RMVB, FLV, 3GP, MPEG, DAT, ... 37 cm with 10pcs weight:10KG Android System,Gravity Sensor,Google Map,WIFI,Card Reader,Touching Screen,7inch touch screen MID