pro : these be great headphone . they be extremely loud and give out great sound . on my laptop i would normally have my volume at 100 % and have problem hear it -lrb- use on the ear headphone -rrb- , but with these i need my laptop around 25 % and i can not hear anything outside of the music playing . con : these headphone be over the ear and if they would be just a little bit farther from the ear they would not start to press against my ear . after about 6 hour it start to hurt the edge of my ear -lrb- but it may be just I , because i have some big ear -rrb- . but this usually go away after 5 min of have they off and they i be ready for another hour . hope i help .