Audio-Technica ATH-A700x Audiophile Closed-back Dynamic Headphones Audiophile-quality headphones with metallic finish Closed-back Double Air Damping System for deep bass reproduction Proprietary large-aperture 53 mm drivers with neodymium magnet systems and CCAW voice coils for superior sound reproduction Self-adjusting 3D Wing Support Housing provides comfortable support for a more enjoyable listening experience OFC (oxygen-free copper) cloth-wrapped cable Audiophile-quality headphones with metallic finish Closed-back Double Air Damping System for deep bass reproduction Large 53mm drivers with neodymium magnet systems and CCAW voice coils for superior sound reproduction Self-adjusting 3D Wing Support Housing provides comfortable support for a more enjoyable listening experience OFC (oxygen-free copper) cloth-wrapped cable