"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. The stylish design complements a self-adjusting glove leather headband with aluminum arches and solid rivets. A two-layer diaphragm with AKGs patented Varimotion design virtually eliminates distortion and delivers exceptional imaging. Highlights » A high-performance neodymium magnet structure complements the flat wire voice coil » Breathable velour ear pads that cradle the ears while enhancing bass response » Maximum wearing comfort with genuine self-adjusting leather headband for automatic fit"