AKG HSD 271, Headset@+*Dynamic Headphones:*@+@+, Closed, Circumaural, Transmission range: 16 - 28,000 Hz, Sound pressure level: 94 dB, Nominal impedance: 55 Ohm, Rated power: 200 mW@+*Microphone:*@+@+, Dynamic, Hypercardioid, Transmission range: 60 - 17,000 Hz, Weight: 305 g, Swivelling microphone arm, Colour: Matte black@+*Note:* Cable is not included - suitable cable: Article number #260784#