these headphone be a very good value . they block noise very well , and the three earbud size should fit pretty much anyone . the sound be noticeably better than my fifteen-dollar set I have be use and I have find that I be able to pick out lyric or melody in some song that I have not notice before . the behind the head cord might annoy some but I be use to it and I find that it help the headphone from be tear from you ear or catch on thing . the headphone themselves be very small and sleek look . the packaging and shipping be my only complaint , as there be virtually no way to open the dang thing without a heavy duty scissors and a lot of effort . the shipping take a little longer than I would have like but that be not the fault of the headphone ! Sennheiser say that they come with a 2 year guarantee warranty , although I have no idea how this would work since I order they from a third-party . hopefully I will not need to figure this out . overall , a great value and I use they everyday . they be stylish , comfortable and sound great .