H2O Audio's line of rugged casings for MP3 players allows for the use of expensive and delicate digital music players during water sports activities. Partnering directly with leading MP3 manufactures, H2O Audio has created a line of sturdy and practical casings, patented waterproof headphones, and underwater accessories. Established by athletes for athletes, H2O Audio is made up of a team of avid swimmers, surfers, wake-boarders, sky-boarders, and kayakers.

H2O Audio began in 2001 as a graduate project at San Diego State University that aimed to bring music to Scuba divers. It just didn’t seem fair that runners and other terrestrial athletes could train with the benefit of music, while swimmers, surfers, divers, and other aquatic athletes were bound to silence. The company's beginnings pre-dated the widespread popularity of the iPod® and other MP3 players, so the first dive case was designed to house a portable CD player.

After many prototypes and adjustments, the first production model case was made for the iRiver MP3 player in 2002. It came equipped with the power-amplified diving headphones similar to those that are integrated into the current, state-of-the-art "iDive Underwater Apple iPhone/iPod MP3 Housing." More recently, H2O Audio incorporated in-ear technology into the "Surge" and "Surge Sportwrap" headphones.

In 2005, the company designed the first waterproof cases for iPod. For the first time, swimmers and surfers could take their music into the water. As the iPod evolved so did H2O Audio, which led to the innovation of the "Interval Waterproof Headphone System," which fits both the 3rd and 4th generation iPod Shuffle™. In a constant effort to improve sound quality and comfort, H2O Audio also introduced the "iPod Shuffle Swimbelt" and the "Amphibx Armbands," which come in three sizes to accommodate many sizes of MP3 players.

H2O Audio product design and development is based on years of prototypes and close collaboration with top athletes like Olympic swimmer Natalie Coughlin and triathletes Greg and Laura Bennett, and surfer Laird Hamilton.

Today, H2O Audio's corporate headquarters are just feet from the ocean (in other words, testing grounds) in Pacific Beach, California. The company is committed to developing the best high-performance waterproof and sweat-proof sport headphones, armbands, and other accessories on the market. H2O Audio doesn't want to be limited to producing a cheap, featureless player simply because it's waterproof. The company strives instead to create something that functions well in any conditions, providing high-quality sound, easy control of the audio device, and access to music no matter the conditions.