Wii Fit Action Board: Getting fit has never been this much fun! Move, balance and exercise with Intec's Action Board! Specifically designed to work with your Wii console and related software. The perfect tool for aerobics, strength training, yoga, and balance games. Simply lay it out, insert 4 AA batteries (not included) and get stepping! The wireless technology allows you to play up to 40 feet away from your Wii console. The integrated pressure sensors are calibrated to perfection. It will measure your real-life movements, center of balance and body weight.