No Matter how fast your moves are, this wireless sensor bar will stay right with you. Custom-designed for your Wii console, this cable free-beauty is pakced with wireless technology to ensure lightning-quick response time. Kiss your sensor bar wires good-bye. Simply load it with two (2) AA batteries (not included), secure it to any surface using the integrated suction cups and youre ready to game. Features an auto shut-off timer to help save battery life. Powers on/off with your Wii Remote.