Critically acclaimed sonic performance praised by top audio engineers and pro audio reviewers. Proprietary 45 millimeter large aperture drivers with rare earth magnets and copper clad aluminum wire voice coils. Exceptional clarity throughout an extended frequency range, with deep, accurate bass response. Circumaural design contours around the ears for excellent sound isolation in loud environments. 90 degree swiveling earcups for easy, one ear monitoring, and professional grade earpad and headband material delivers more durability and comfort. Professional grade studio monitor headphones with a detachable cable