The Air Music Remote gives you wireless control of your PC and Media Center, and up to 3 additional devices. The remote uses RF signals, so you get flawless performance up to 100 feet away from your devices, even with walls or furniture in the way. The MotionSense technology uses your wrist motions to move the cursor, like a mouse that works in the air. You’ll navigate through your files and media library, and control media playback as easily as if you were sitting at your desk, and you can do it from the comfort of your sofa! Program the remote to control your TV, DVD or Blu-Ray, and home theater receiver, and you’ll never need to pick up another remote again! Your computer can be a powerful component in your home entertainment system; let the Gyration Air Remote make the integration seamless! Power Supply: 4 AAA Batteries Distance: Up to 100 ft./30m Operating System Supported: Windows XP Media Center Edition or Windows Vista Ultimate / Premium Editions Features: Universal Remote Control for PC, Media Center and Audio/Video Functions In-air cursor control using patented MotionSense technology 1.75″ back lit blue LCD screen for accessing your digital music library 2.4GHz RF technology for up to 100 foot (30m) mouse range with no line-of-sight restrictions Certified for Windows Vista Premium / Ultimate editions with