Razer Kraken Pro gaming headset Yoven Mooroongapillay 4 years ago Frequency response: 12 Hz – 28 kHz. Impedance: 32 Ω @ 1 kHz. Sensitivity (@1 kHz): 109 dB. Input power: 30 mW (Max) Drivers: 50 mm, with Neodymium magnets. Inner ear cup diameter: 54 mm x 65 mm. Connection type: Analog 3.5 mm.