If you’re a swimmer, you’ve been left in relative silence as soon as you hit the water. Thanks to a cool bit of technology by H20 Audio, you can bring your tunes with you below the surface.  Enter the iSH2, a device that locks your iPod shuffle into a waterproof case that’s about the size of a Tic Tac box. The waterproof earbuds clip onto your goggles’ strap near the back of your head.  Next time you head to the pool to swim some laps, bring a little musical motivation to the party. [$79.99 at H2OAudio]