Koss's miniature portable earphone, affectionately dubbed "The Plug," makes use of an ear-cushion material (similar to that used in sound-blocking earplugs) that slowly expands in your ear canal to provide a custom fit and maximum sonic isolation from external noises. A detachable, extrawide headband makes these Koss-termed "stereophones" easy to carry or store. For...
H2O Audio H3 Waterproof Headphones let you listen to music while swimming with the optional H2O Audio waterproof housing. Their modular design allows you to use the headphones as standard earbuds, or with the detachable wrap-around sports band. Aquatic silencer earplugs reduce noise and seal out water. The reactive coiled cable eliminates tangles and provides flexible slack that moves with you.