Underwater MP3 Player: Enjoy crystal clear audio during your swim workout with the Duo MP3 player, the ultimate underwater headphones for swimming
Bone Conduction Headphones: The Duo utilizes Bone Conduction audio transmission to deliver high-quality sound through cheekbones for the best swimming headphones experience
Underwater Swimming Headphones: Navigate your audio files with ease with the Duo's simplified interface; Duo supports MP3 and WMA files
Waterproof Bone Conduction Headphones: With 4GB of flash memory and a rechargeable battery life of up to 7 hours, the Duo MP3 player stores up to 1000 songs or 60 hours of playback
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