Almost everyone wears headphones while they’re working out — runners, cyclists, gym-goers. Now, thanks to the FINIS Duo Underwater MP3 player, swimmers can join in the fun. Waterproof upto 10 feet, the FINIS vibrates against your skull for bone-conduction audio that sounds as clear as it would outside water. Clip this 4GB device to your goggles and listen to upto 60 hours of your favourite music or audiobooks underwater. Music upload is via the charging port that attaches to your computer via the USB device.