Corsair Raptor H3 Gaming Headset Use it with your sound card, or use the included USB (Universal Serial Bus) adapter for 5.1 gaming audio: Raptor H5 is a circumaural gaming headset that works with both analog & USB (Universal Serial Bus) connections. The built-in USB (Universal Serial Bus) sound card provides 5.1 channel surround sound for gaming realism. The around-the-ears, closed-back design helps keep the environmental noise out, & keep your head in the game, & the noise-cancelling microphone helps ensure that your teammates hear you clearly. Analog & USB (Universal Serial Bus) connectors: If you have a high-quality sound card with CMSS„¢-3D or similar surround sound technology, you can use the standard dual 3.5mm analog connectors for realistic multi-channel audio. Or, use the included USB (Universal Serial Bus) adapter cable & the built-in USB (Universal Serial Bus) sound card will handle the surround sound for you. 5.1 Channel positional audio with USB: The H5 accurately reproduces multi-channel audio, for better situational awareness & a tactical advantage. You can hear where your enemies are, before you see them “ or they see you. Circumaural closed-back design with padded headband: The padded circumaural earpads go around your ears for enhanced noise isolation, & the closed-back design helps keep out environmental noise for an immersive gaming experience with fewer distractions. Left/ Right volume control: You can adjust the stereo balance with the turn of a knob. Noise-cancelling microphone with rotating boom: The microphone automatically reduces background noise, so youll be heard loud & clear. When youre not team playing, the mic swings up & out of the way. About Corsair Raptor Gaming Peripherals: When precision & performance mean the difference between winning & losing, you can count on Corsair Raptor gaming mice, keyboards, & headsets. If youre playing to win, you need carefully selected components & rugged designs that are made to stand up to hours of game play. The Corsair Raptor line was created with the goal of putting gaming-grade peripherals into everybodys hands. Headphones: Impedance: 32 Ohm Drivers: 40mm Sensitivity: 121d B Max power input: 50m W Noise-Cancelling Microphone: Impedance: 2.2K Ohm Sensitivity: -40d B Cable Length (5.2m/17 total): 2m (6.5) attached cable 1.2m (4) in-line USB (Universal Serial Bus) audio cable 2m (6.5) audio extension cable