The ATH-A550Z Art Monitor® closed-back dynamic headphones incorporate proprietary large-aperture 53 mm drivers with CCAW bobbin-wound voice coils to deliver audiophile-quality acoustic performance with linear frequency response. The drivers also feature a top-mounted PCB, which contributes to smoother airflow for precise diaphragm movement. Audio-Technica’s improved 3D wing support system provides an excellent, comfortable fit, aided by the headphones’ soft, premium-grade earpads. The 3.0 m (9.8') tangle-free cable is cloth-wrapped for lasting durability. Audiophile-quality headphones with metallic finish Newly designed 53 mm drivers with CCAW bobbin-wound voice coils Top-mounted PCB contributes to smoother airflow for precise diaphragm movement Double Air Damping System (D.A.D.S) for deep bass reproduction Proprietary 3D wing support system for excellent fit Premium, soft earpads for long-lasting comfort 3.0 m (9.8') cloth-wrapped, tangle-free cable Includes 6.3 mm (¼") stereo adapter