all the positive review across the internet be absolutely right . from the time I put they on , these headphone be completely different from any I have previously own . the range of sound be superb , and the bass response be surprising for a package of this size . sound clarity be not a issue , you can crank the volume up quite high without any distortion . here be some more feature : - extremely portable : the px100 fold up into a little carry case - easy on the ear : the only time I have have any slight discomfort whatsoever be when I wear they for 6 hour straigh . - easy to drive : even on my AAA battery-driven zen micro mp3 player I do not need to max the volume to hear everything well . here be some other thing to consider : - since these be portable , the cord be only 5 ft long ; you will most likely need a extension if you plan on use they with a desktop pc . - these be OPEN headphone , so some sound leak out : most music and sound be barely audible a few foot away from the px100 , but game sound -lrb- gunfire , explosion , etc. -rrb- and rock music seem to propagate easily because of the sharp , intense sound . if you need a pair of headphone to use in a quiet area , I would suggest buy a closed pair -lrb- earcup -rrb- or some canal earphone -lrb- one that go inside the ear canal -rrb- . all in all , a great buy , consider that most headphone do not begin to sound this good until you hit $ 60 .