ArmaggeddonÕs FUZE series of headsets has its name rooted in the idea of creating a fusion bomb, headsets which command more than one type of audio such as that of the 5.1 and 7.1 digital surround sound. ArmaggeddonÕs FUZE series of headsets which command both 5.1 and 7.1 digital surround sound. The Fuze series strikes a good balance between the treble, mid-range, and bass frequencies – this produces rich details that contribute to an immersive sound stage. On top of all that, the Armaggeddon Fuze drivers are capable of pumping out extra bass that you hear AND feel to complete your ultimate gaming experience. The unidirectional mic captures your voice while ignoring background noise so that your every battle command is clear as day Headphones: Frequency response: 20Hz ~ 20KHz Impedance: 32 Ohms (?) Sensitivity: 115dB SPL @ 1KHz Rated power: 20mW Driver size: 50mm Total numbers of drivers built-in: 2 Microphone: Noise cancellation Frequency response: 16Hz ~ 20000 Hz Sensitivity: -38db Signal-to-Noise ratio: ?60% ~ 80% Other Specifications: Audio and microphone jack: USB 2.0 gold plated Software Included: Up to 7.1 Adjustable speaker angle and positioning Manual equalization with DB slider System Requirement: PC: Window XP, Win Vista, Win 7, Win 8, Win 8.1 1 x USB port CD-Rom: to install software driver