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  • Published Dec 2, 2011
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That black line seems less dreary when you’re rocking some sweet tunes underwater with the H2O Audio Interval 4G Waterproof Headphone System, which works with the 4th generation iPod shuffle. $99.99,

Liz Hichens is the Web Editor of She is an Ironman and marathon finisher and fan of all endurance sports.

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