Corsair HS45 Surround. Product type: Headset, Microphone type: Boom, Wearing style: Head-band. Connectivity technology: Wired. Ear coupling: Circumaural, Headphone frequency: 20 - 20000 Hz, Impedance: 32 Ω. Microphone frequency: 100 - 10000 Hz, Microphone sensitivity: -40 dB, Microphone input impedance: 2200 Ω. Control type: Buttons,Rotary