Beyerdynamic DT-109/M200/H50-B Headset - headset, headphone: dynamic, closed, circumaural, impedance 50 Ohms, pressure level 94dB, frequency range 30-20.000 Hz, weight 390g, microphone: dynamic, polar pattern hypercardioid, impedance 200 Ohms, frequency range 40-12.000 Hz, colour black, attention: cable is not included, please order optional !