Casti cu microfon Razer Kraken X USB, 7.1 Surround Sound, Drivers: 40 mm, with Neodymium magnets, Frequency response: 12 Hz – 28 kHz, Impedance: 32 Ω @ 1 kHz, Sensitivity (@1 kHz): 109 dB, Input power: 30 mW, Inner ear cup, diameter: 65 mm x44 mm, Connection type:USB, Cable length: 1.3 m / 4.27 ft., Approx. weight: 322 g / 0.71 lbs, Frequency response: 100 Hz – 10 kHz, Signal-to-noise ratio: > 60 dB, Sensitivity (@1 kHz): – 45 ± 3 dB.