Razer Banshee StarCraft® II USB Gaming Headset, Circumaural Design with 50mm Driver Units, Volume & Mic Control Buttons on the Headset, APM-Lighting System, 10 preset EQ, Detachable Microphone Boom, Braided 7 Foot USB Cable, Headphones: Frequency Response: 20 - 20,000 Hz, Impedance: 32O at 1kHz, Sensitivity (@1kHz, 1V/Pa): >102dB at 1 kHz, Drivers: 50 mm, with neodymium magnets, Microphone: Frequency Response: 100 - 10,000 Hz, Sensitivity (-42 dB ± 2dB @1kHz, 1V/Pa), Signal-to-Noise Ratio: >58 d