The DT 990 Pro has been made for listening without stress. This open headphone features a pleasant sound and brilliant bass. The DT 990 gives a three-dimensional sound, that is, it reproduces all details of the various instruments of an orchestra as a unity. You will experience an unique audio. Low headband pressure and a soft padded headband ensure a high comfort. The soft ear pads can be easily replaced. The single-sided coiled cable can be extended and is fitted with a gold vaporized stereo jack plug (3.5 mm) and adapter gives enough freedom of movement. This DT990 Pro has a 250 Ohm impedance. Other available versions are for use with portable mediaplayers (35 ohm) or external headphoneamps (600 ohm).