Audio-Technica ATH-AD500X is specially designed to keep up with craves of music enthusiasts. With high-grade magnesium frame structure and compact yet lightweight honeycomb aluminium casing, the ATH-AD500X lets you enjoy the music comfortably with no pressure on ears. These open-air headphones are aimed to provide the best natural listening experience. The advanced CCAW voice coils and 53mm drivers are aimed to provide the most natural sound with appropriate bass and enhanced vocal projection. The flexible frame will automatically adjust according to your head size.