Do you do triathlons of a weekend? I tip my hat to you. For the rest of us, maybe we just want some good running headphones or a set of the best swimming headphones we know we can rely on for being really, really waterproof.  And these are they, because H2O (the Californian specialist that was first to market with waterproof headphones in 2003) today released its newest invention – multi-sport, waterproof bone conduction headphones that go beyond the IPX8 rating by being submersible up to 12 feet of water for an unlimited amount of time.
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