The pointing apparatus is able to control the moue cursor and buttons function in the Air and on the Desk. It can provide help for computer remote control, mouse operation and game input device. Features : Motion sensed by Gyro in the Air Motion sensed by Blue Optical on the Desk Function keys 2.4GHz DSSS wireless(nano Dongle together) AAA Battery About 18m wireless range. 40pcs/ctn/7.7kg/2.84'.