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This 256MB music player from Rio offers up to 20 hours of battery life, the company says. The device, dubbed the Rio Forge Sport, can also play FM radio and doubles as a stopwatch and lap counter. The Rio Forge Sport comes with an armband, sport clip and earphones. It costs $109.99.
The Connected Electronics case from Aquapac is a watertight pouch designed to keep gadgets dry. The pouch isn't meant to be submerged in the water, but the company says it will float, keeping its contents safe, if dropped in the water. It costs $59.99.
This MP3 player from Finis attaches to a swimmer's goggles. According to the company's site, the 128MB device "is fully waterproof and can be used with all the competitive swim strokes." It costs $249.99.