CM Storm Sonuz. Device connectivity: Wired, Device interface: 3.5 mm, Cable length: 2 m. Ear coupling: circumaural, Headphone frequency: 10 - 20000 Hz, Impedance: 45 Ом. Microphone frequency: 100 - 10000 Hz, Microphone sensitivity: -47 dB. Package dimensions (WxDxH): 388 x 550 x 275 mm. Number of products included: 1 pcs, Volume control: Digital