Sennheiser HMD26-II-100 Professional Broadcast Headset - dynamic, closed back and on-ear headphone, impedance 100 ohms, sensitivity 115 dB SPL/1 kHz, 1V, frequency range 20 - 18000 Hz, microphone: typ BMD 424, dynamic, noise-compensating, hyper-cardioid, frequency range 40 - 16000 Hz, output voltage 0,4mV/Pa at 1kHz, impedance 300 Ohms, weight (without cable) 200g, attention! cable is not included, please order optionally!