Don't be limited by the length of your sensor bar cable! Now you can set up your Wireless Sensor Bar wherever you want! Intec's Wireless Sensor Bar features two suction cups for secure set-up a switch-activated shut-off timer that can be set for up tp 2 hours of continuous gaming to save battery life and is powered by 2 AA batteries (not included). The Wireless Sensor Bar is automatically detected by your Wii as soon as it's turned on - no wireless receiver needed!