I got these about 18 months ago and have only used them on short flights when I don't want to carry most headphones (which work much better) with me. ). Sound quality seemed okay, comfort and in-ear fit were average in my opinion. The noise cancellation is noticeable, but not outstanding. However, one side stopped working after only 18 months and maybe 6 uses (I had this problem with cheap $5 headphones, so I think it only happens with headphones). I love that you can attach the battery holder to a jacket or something, but I won't be buying them again as I don't think they lasted that long for the price and otherwise didn't look great (and it was difficult to to keep the kidneys in the ears).
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