Yup, it protects the eardrum, just like earplugs do. Also, I wear a helmet with the set-up so it keeps the headphones snug and secure. I use the swimbelt which puts the ipod on your waist right in the small of your back, the wire goes up my back and then to the headphones. The ipod and the wire is under my vest, so you can't really tell I'm packing heat!
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