Headphones:
Frequency Response: 20 - 20,000 Hz
Impedance: 32Ω at 1kHz
Sensitivity (@1kHz, 1V/Pa): 102 dB ± 4dB at 1 kHz
Max. Input Power: 200 mW
Drivers: 40 mm, with neodymium magnets
Microphone:
Frequency Response: 50 - 16,000 Hz
Sensitivity (-37 dB ± 4dB @1kHz, 1V/Pa): Variable (user adjustable)
Signal-to-Noise Ratio: 50 dB
Pick-up pattern: Unidirectional
Audio Processing Unit:
Master volume, center speaker, front speakers, side speakers, rear speakers, bass level, mic sensitivity, mic leveling, mic mute, Razer Maelstrom on/off, active/standby toggle, reset
Cable: 3.3 meters, Braided Fiber Sheath
Connector: Gold-plated USB

Requirements:
PC with built-in USB port
Powered USB-Port recommended
Windows® XP / x64 / Vista/ Vista64/Windows 7