beyerdynamic DT-990 Pro Headphones, Studio Headphones, Open design, Circumaural design, Dynamic, Diffuse-field equalised, Impedance: 250 Ohm, Sensitivity: 96 dB/mW, Frequency response: 5 Hz - 35 kHz, Weight with cable: 364 g, Weight without cable: 271 g, Includes a 3 m coiled cable with 3.5 mm jack, a screw on adapter to 6.3 mm jack, and a drawstring bag