Hey, H2O Audio is testing their next swim specific product for all you serious swimmers and triathletes. They haven’t divulged the details yet, but word is that it is designed specifically for a current Apple product that may or may not be larger than a double A battery but smaller than a standard sized Post-it folded in half. They have adjusted the point where the  swim goggle strap attaches to the device which has significantly improved the positioning on the head and overall hydrodynamics. And the final prototype has successfully passed all flip turn tests.

Check it out – http://www.h2oaudio.com/blog