V-Moda M-200, Headphones, Circumaural, Closed, 50 mm Driver, Sensitivity: 101.5 dB @ 1 kHz 1 mW, Impedance: 30 Ohm, Frequency response: 5 - 40000 Hz, Weight: 290 g, Includes SpeakEasy 1-button microphone cable, one-sided balanced cable, case and 6.3 mm adapter