The audio technica ath ad2000x headphones offer an elite listening experience'. '.strtoupper('t')hese high fidelity, open back headphones will provide you with hours of outstanding stereo listening, without compromising comfort'. '.strtoupper('a')th ad2000x delivers natural vocal and instrumental reproduction with perfect clarity'. '.strtoupper('t')he large 53mm aperture drives on the headphones are based around audio technicas bobbin wound ccaw voice coils that regenerate the audio signal with crisp resolution and a deep, balanced bass'. '.strtoupper('l')ightweight design made from magnesium alloy, the audio technica ath ad2000x headphone structure is extremely light and simultaneously robust weighing in at only 256g'. '.strtoupper('a')luminium honeycomb casing further enhances comfort for longer listening periods'. '.strtoupper('p')cocc cable the audio technica ath ad2000x comes with a high quality pure copper ohno continuous cast cable, for pristine conduction and preventing unwanted sound alteration'. '.strtoupper('e')nhanced 3d wing support the updated design of the wing support housing is self adjusting and adapts itself to all shapes and sizes of head providing a personal, secure fit that is extremely comfortable'. '.strtoupper('t')he audio technica ath d2000x also features ear fitting pads, made from durable suede with a plush feel, to deliver optimum comfort'. '.strtoupper('d')ouble air damping system the audio technica designed structure provides an extended frequency range for precise, deep bass reproduction'. '.strtoupper('c')caw ofc7n copper voice coils in addition to incorporating a two part magnetic metal circuit, whose function is to increase sound efficiency and richness, the ath ad2000x also has pure copper coils in ccaw copper clad aluminium wire 99.99% oxygen free copper'. '.strtoupper('a') permendur magnetic circuit the ath ad2000x has a magnetic circuit made from permendur an alloy composed of equal amounts of iron and cobalt, which gives it exceptional sound quality, and a wide range of sound reproduction properties.