Enjoy high-performance audio anywhere in your home - upstairs, downstairs and everywhere in between. Acoustic Research wireless 2.1 GHZ digital headphones reproduce crisp, clear sound with unsurpassed depth and clarity. Watch TV or listen to music and games in a whole new way; immersed in entertainment and free from wires. Integrated multi-chamber designed speakers deliver an omni-directional listening experience other headphones can't match. 2.4 GHZ digital technology makes it virtually interference-free. Roam wherever you want and maintain flawless CD-quality reception through walls, floors and ceilings - up to 100 ft. So lightweight and comfortable, you'll hardly know they're there.