Reference headphones for control and monitoring purpose (closed) Circumaural headphones for professional sound in the studio and on mobile devices Innovative bass reflex system High wearing comfort thanks to soft, circumaural and replaceable ear pads Comfortable fit due to rugged, adjustable, soft padded headband construction Made in Germany TECHNICAL DATA OPERATING PRINCIPLE.....Closed TRANSMISSION TYPE.....Wired REMOTE.....Without Remote WEIGHT HEADPHONES WITHOUT CABLE.....270 g HEADPHONE FREQUENCY RESPONSE.....5 - 35.000 Hz NOMINAL SOUND PRESSURE LEVEL.....96 dB SOUND COUPLING TO THE EAR.....Circumaural (around the ear)