Audio Technica ATH-M60XATH M60x On Ear Professional Monitor Headphones Low profile closed back, on ear design provides excellent isolation and fit Proprietary 45 mm large aperture drivers (the same used in the ATH M50x) Exceptional clarity throughout an extended frequency range Low impedance design delivers high output level from any headphone output Memory foam earpads allow headphones to be worn comfortably for hours Earpads and headband detach for easy replacement