The H2O Audio Interval Waterproof Headphone System is designed for swimmers to bring their music into the water and break the monotony of their swim routines. It is made to fit an Apple iPod shuffle 3rd generation portable music player. It is used by gold medal swimmers Natalie Coughlin and Michael Phelps and works well for recreational, fitness, competitive, and open water swimmers and performs equally well in fresh and salt water. The headphones attach to practically any swim goggle making it a low profile, hassle-free way to stay motivated. There are push buttons for volume and music playback control.
The Interval Headphone System includes 5 sets of Elastomer earplugs and 2 sets of foam earplugs to ensure headphones stay securely in place while swimming.