AKG HSC 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:*@+@+, Condenser, Cardiod, Transmission range: 20 - 20,000 Hz, Swivelling microphone arm, Weight: 300 g, Colour: Matte black@+*Note:* Cable is not included - suitable cable: Article number #260783# or Article number #208587#