the first thing I notice about these headphone be the comfort -- the material be very soft and fit just around my ear -lrb- though it may not work for other , as I have very small ear -rrb- . the headband , stuff with a little cotton , fit especially well over my head , and do not beat down on the top as some other plastic one have . after I put they on , I notice that I could hear EVERYTHING ... which might be good or bad , depend on its use . it be good for closed performance -lrb- without a audience -rrb- because every tiny nuance provide by the performer be present crystal-clear . in fact , at certain very , very quiet pause , I even could hear the orchestra turn the page -lrb- literally -rrb- ! however , it be not so good for live performance , where every obnoxious \* cough , cough \* or \* HACKGH , HACKGH \* from the audience can be hear , equally crystal-clear . another trait of these headphone be that , when I let other try they , the headphone do not leak . that be , I can not hear what they be listen to unless I jam my ear against theirs , and they certainly can not hear I . this `` containment '' of the sound be probably the reason why the music sound much louder through these than through the other I have try . overall , I think these headphone be worth the price . however , they do not leak as much sound as the Panasonic noise-canceling headphone , and they be especially comfortable and extremely , I repeat extremely clear .