Over-ear, semi-open, foldable studio headphones that are perfect for live monitoring and mixing, and built on a legacy of 70 years of quality, featuring AKG's latest transducer and acoustic technologies. As a result, they deliver unparalleled audio performance and a transparent, yet spacious sound for musicians, engineers, and producers who need superior accuracy from reliable headphones that stand up to today's mobile lifestyle. Their ergonomic design provides a comfortable fit even during long sessions. The headphones are equipped with largest-in-class 50mm transducers for greater low-frequency extension, providing frequency response of 15 to 25000 Hy for unrivalled clarity and detail. Superior sensitivity of 109 dB and low impedance of 32 Ohms provide maximum output with a broad range of playback devices. The headphone also features a headband that self-adjusts for a perfect fit and slow-retention foam ear pads that ensure a comfortable, secure fit and also maximize acoustic isolation. Other features include durable all-metal hinge designed to last for years and 5m long, coiled replaceable cable. Weight: 295 g.