extremely good fit on your head. very good isolation. very loud. mono/stereo switch that has come in very handy on dodgy mixers. also great for checking your mixdowns in mono when producing. the bass boost switch is fantastic. they have the best bass response of any headphones ive used. ive been djing for 15 years and these are the best headphones ive ever used. they are great for production, very detailed and the added low end which very few headphones provide. unfortunately they hurt your ears after a long period of use... could have done with a more comfortable cup.