great sound , especially the bass . the sound insulation be very impressive , when the speaker be put together , you can not hear any noise come out unless you be really blast the music . the cord be very well design . it be thick enough that you be not go to damage anything if you accidentally roll over it in you chair , and the coiled design make it great for move around . they be also extremely comfortable , and dont make my ear hurt or hot . I have a large head , and you can jack these out to fit even the largest head , yet they still fit snugly on my small-headed room mate . fantastic headphone , I recommend they to everyone .