Air Dynamic (open) headphones for natural and high quality sounds with deep resonating bass and vocal projection. Full open-air type headphones produce no sense of pressure on the ears, resulting in a completely natural sensation. Lightweight honeycomb aluminum casing and magnesium frame structure; extremely comfortable velvet ear-fitting pads. 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.