Open, over-ear design, the AKG K612 PRO are reference headphones that deliver natural sound imaging for professional monitoring. The advanced open technology offers comfort for long working sessions and a full, spacious sound. AKG?s patented Varimotion? diaphragm technology completes the unique sound of the K612 PRO. Obvious features such as the self-adjusting real leather headband, aluminum arches and solid rivets not only provide a lightweight, maximum comfort fit, but also reinforce the quality AKG has provided to studio engineers for decades.