OAKLEY THUMP™ is the world's first digital music eyewear. No more wires. Just high-performance optics forged with an integrated, state-of-the-art digital audio engine. Listen to music virtually anywhere -- Up to 6 hours of playback time. Change the way you see and hear the world. Right out of the box, OAKLEY THUMP works with most Mac and Windows PCs. No set-up required. No software to install. Includes high-speed USB cable for transferring song files. Load songs from MusicMatch, Windows Media Player, or whatever music library program you want. OAKLEY THUMP is the world's first cross-platform, plug-and-play digital music eyewear. OAKLEY THUMP is science wrapped in art. Never before has 3-D CAD/CAM engineering created such a unique, technically advanced eyewear sculpture that defines a new generation of style. 100% Satisfaction Guaranteed.