High performance, low-frequency, closed-type headphones with 'Ergonomic acoustic refinement' (EAR) technology that direct the acoustic signal directly into the ears of the listener, Over-ear design that isolates the sounds produced by the outside environment, microphone with in-line remote control. HD 569 headphones include two detachable 3 meter long cables with 6.3 mm straight plug and 1.2 meter cord with 3.5 mm straight plug for home use or when portable player.