simple design , great sound , awesome sound isolation , perfect for Dj ` ing or chill . best on-ear headphone you can get . before I buy the hd 25-1 ii -lrb- adida version -rrb- I use to have the hd 25-1 ii -lrb- original version -rrb- . I be very happy with they , so I show they off to a group of friend -lrb- some of they be Dj 's , and be Pioneer Hdj lover -rrb- . they be so impressed that they even change from hdj-1000 to hd 25-1 ii . one of they buy I the headphone , and with the money I be able to upgrade to the adida version .