Beyerdynamic DT-109/M200/H400-G Headset – headphones: dynamic, closed back, circumaural, 400ohm impedance, 94dB pressure level, frequency range: 30Hz-20kHz. Weight: 390g. Microphone: dynamic, hypercardioid polar pattern, 200ohm impedance, frequency range: 40Hz-12kHz. Colour: Grey. Please note: cable is not included - please order separately