Sports specialist H20 Audio has begun shipping its latest product, the H3 waterproof earbuds. Though the company has not said to what depths the H3s can be taken, they come bundled with "aquatic silencer" earplugs, which form a watertight seal while aiding comfort and reducing outside noise. Also included is a detachable sport band, and a "reactive" coiled cable that should not tangle or pull while in motion. Compared to previous H20 headphones, the H3s are said to produce 10dB more output, with better bass response, and clearer sound when used outside of water. The earbuds are available now for $50 from shops including Apple Stores.