Monacor BH-010USB, Headphone / Microphone Combination, For direct use with PC or notebook, Closed-back, 30 mm Dynamic driver, Impedance: 32 Ohm, Frequency range of headphones: 20 - 20,000 Hz, Sensitivity of headphones: 105 dB/mW, Electret microphone, Polar pattern: Omnidirectional, Frequency range of microphone: 50 - 15,000 Hz, Sensitivity of microphone: 13 mV/Pa, 2 m Long cable with volume control and USB-A connection, Weight (without cable): 61 g, Colour: Black