AKG HSD 271 Studio Set, Headset with AKG MK HS STUDIO D cable, Weight: 305 g, Colour: Matte black, Includes HSD-HS Studio D cable - length: 3 m, 6-pin mini XLR, Plug to 6.3 mm stereo jack and 3-pin XLR plug@+*Headphones:*@+@+, Closed, Circumaural, Dynamic listener, Transmission range: 16 - 28,000 Hz, Sound pressure level: 94 dB, Nominal impedance: 55 Ohm, Rated power: 200 mW@+*Microphone:*@+@+, Dynamic, Characteristic: Hypercardioid, Transmission range 60 - 17,000 Hz, Swivelling microphone arm