Employing a smaller, second-generation iPod shuffle-sized version of the same waterproof case technologies it used for its just-a-little-too-late Waterproof Housing for iPod shuffle, H2O Audio's new iS2 ($40) includes a hard plastic shell and belt clip that holds the shuffle, a tight-fitting silicone rubber cover, a bottle of sealing lubrication fluid ("Super O-Lube") to prevent water from getting in, and a neoprene armband. You drop the shuffle into…
