The Action Remote Controller Plus with Built-in Motion Sense is a multipurpose controller for playing Nintendo Wii games. It uses internal accelerometers to calculate directional motion and speed. It can be used as a racing wheel, golf club, blaster, tennis racket, baseball bat and much more. Compatible with the Wii Nunchuk . It features motion detection, remote speaker, rumble, ergonomic design, and requires 2 AA batteries . Also includes a Wrist Strap!