The K99 Perception high-performance over-ear, semi-open headphones combine excellent sound quality and an astounding price/performance ratio. Their large, high-performance 40mm (1-7/12") speakers provide a natural, uncolored sound, ideal for project studios. The K99 Perception features gimbal-suspended leatherette ear cups for easy cleaning. The self-adjusting, lightweight headband ensures a pleasant fit for long hours. The K99s come with a 3m (9-3/4ft) fixed, straight cable, including convertible jack plug.