I don’t know how other manufacturers survive with such a competitor, but if it’s a question of buying, I think the choice is obvious Some pros: I had very different Headphones and were ten times more expensive too, but these are the best and not only in their class. Perfect coverage of all frequency ranges. I used these headphones more than ten years ago and again the question arose of buying headphones only for music and remembered Koss. Now I have Apple air pods Pro, it’s not bad either, but Koss music will still be much more interesting Some cons: Open. Often people around complain and ask to turn it off or make it quieter. Well, I think it's time to make them wireless)).
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