... space action, operating accuratly and flexiblely;2. 2.4G wireless communication technology, high bandwidth, high stability;3. Compatible with ... working time(do not plug USB disk, mobile storage,wireless keyboard and mouse dongle,SD Card,etc)Standby Power ... right away.Menubutton: pop up option menuReturnbutton: Return to last page/operationArrowkeys: up,down, left, rightOK key: toconfirm operationMouse ...