Reference studio closed-back headphones, 53mm dynamic drivers that deliver an ultra-wide frequency response (10Hz to 38kHz) deliver extended bass response and detailed treble, lightweight and comfortable for long sessions, natural monitoring similar to a speaker with spacious sound staging, circumaural over-ear design with ultra-soft earcups and adjustable headband, closed-back design ensures a consistent listening environment with exceptional sound isolation, braided fabric and oxygen-free copper wire for added reliability, includes 1/4" adapter, performance optimized for use with a wide range of professional and consumer audio devices.