The DJ1 from Ultrasone we designed to meet the specific needs of the traveling DJ. The DJ1 features our nearly indestructible 50mm Mylar driver that delivers lots of bass right were you need it. With uniqueized tuning that provides tight clear bass response these headphones will cut through even the loudest crowd and allow you to hear your mix perfectly. And with our patented S-Logic Natural Surround Sound you ll be able to hear you mix better at lower levels and protect your hearing at the same time. So if you re tired of turning up the volume to hear over the crowd then these are the headphones for you.