Sennheiser HMD-300 Pro-X4F
Sennheiser HMD-300 Pro-X4F, Multipurpose Headphones, Closed-back, Circumaural design, Impedance: 64 Ohm, Sensitivity: 108 ± 3 dB SPL (sound pressure level) / 1 V rms/1 kHz, Frequency response (headphones): 60 - 25,000 Hz, THD (total harmonic distortion): <0.1% at 1 kHz - 100 dB SPL, Maximum input level: 500 mW, Contact pressure: 6.0 N ± 0.75 N, Dynamic microphone, Directional characteristic: Hypercardioid, Frequency response (microphone): 80 - 16,000 Hz, Impedance: 300 Ohm, Output voltage: 0.4 mV/Pa at 1 kHz, Includes a II-X4F cable with 4-pin female XLR connector, windscreen and pop filter