System Requirements: Windows XP with service pack 3, or Windows 7 32 bit OS. This kit comes with a remote controlled USB-powered Wiimote with built-in, switchable circuit board giving you "set it, forget it, never have to touch it, no daily aiming, never fiddle with batteries, rock solid performance" Contents: 1 USB powered Wiimote, 1 Wiimote ceiling mount for use on suspended ceilings between 8' and 11' high, 1 remote control and switchable 110 volt outlet, 1 USB power source, two Wibscrib infrared pens, a six foot USB cord, and a bluetooth adaptor. *If USB cord length between USB power source and Wiimote is likely to be more than 15', order the USB extension kit offered on products page.