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They block everything.
Sorry, there was a problem. Please try again later.Lol, some people snore so loud they make the walls shake. The noice cancelling power of these are supreme however. Also I wouldn't recommend falling asleep with these in your ears. I feel I broke my previous set of bose earbuds by falling asleep with them in my ears, which led me to these. I'm not upset about making that mistake.
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