Official Nintendo Wii Wireless Ultra Sensor Bar with Extended Play Range Extended play range to provide maximum tracking performance Adjustable distance settings Officially licensed Nintendo product Automatic shut off feature Wireless replacement sensor bar with extended play range provides Adjustable distance settings for large or small rooms Automatic shut-off feature (1 hour and 2 hour options) extends battery life Low battery indicator light alert - no more unexpectedly dead batteries (uses 4 AA batteries - not included) Officially Licensed by Nintendo. 100% Authentic POWER A Product