Working out without music sucks. And it’s even more so when your preferred workout is in a pool. With the waterproof Finis SwiMP3 ($130) you can easily swim for hours while enjoying your high-energy playlist. Simply clip the SwiMP3 on your goggles and its patented bone-conduction features will send sound vibrations directly to your inner ear. The SwiMP3 has an on-board control panel, can play cotiniously for 8 hours with a single hit and offers 1GB of storage.