The Audio-Technica ATH-AD700X open-back headphones feature 53mm diameter dynamic drivers and copper-clad aluminum voice coils (CCAW), providing excellent spatialization with accurate highs and mids and deep, defined lows. The aluminum honeycomb shells of the headphone make it very light, so it does not exert any pressure on the ears for a perfectly natural listening experience. The headband is self-adjusting and adapts to the shape of the head for optimal wearing comfort. In the same spirit of comfort, the earpads are made of a slow-restoring foam and covered with soft velvet. The headphones also come with a cable with OFC copper conductors for excellent conductivity.