Superlux HMC 660 X Headset Combination - headphones: dynamic, closed back, impedance 150 ohms, frequency 10 - 30.000 Hz, sensitivity 96 dB, condenser microphone (phantom power 1,5 V to 9 V): frequency 50 - 15.000 Hz, impedance 200 Ohms, max. SPL: 136 dB, incl. 3 m coiled cable with 3,5 mm plug und adapter to 6,3 mm, XLR mic plug, color: black