H2O Audio is a company based in San Diego, California, which develops accessories for portable media players.
[1] H2O Audio has an international distribution system covering over 30 countries, including the United Kingdom, Australia, Mexico, and Japan.
They also make the only housing with attached speakers that allows iPods and iPhones to function and be controlled underwater up to depths of 300 feet.
[3] H2O Audio's motto is "Your Sport, Your Music", and their sponsored athletes include Michael Phelps, Natalie Coughlin, Laird Hamilton, and triathletes Greg and Laura Bennett.
In 2009, Olympic swimmer Michael Phelps also became an official ambassador of the brand, along with triathletes Greg and Laura Bennett.