... , 1*DC-In jack,1*micro SDcard reader slot. 10.Switch Control:8 buttons:A,Power On/Off button (Press short time ... turn on or turn off);B,3G card on/off switch;C,Home button;D,reset botton;E,Volume +/-;F,Auto ... ; press twice,disable rotate);G,USB wifi&bluetooth on/off switch.10.Power: 3cell 3000mah LION battery,work about 2-3hour ...