Razer Surround gives gamers the best virtual 7.1 channel surround sound experience with any stereo headphones. Current generation virtual surround technologies are often inaccurate given that every individual has a unique response to simulated sound stages – as such, virtual surround sound is often regarded as inferior to discrete surround sound set ups. Using state-of-the-art technology, the surround sound algorithms powering Razer Surround creates an unbelievably accurate surround sound environment and allows gamers to calibrate positional sound to match their own unique preferences. This level of calibration allows Razer Surround to provide an incredible level of precision in-game, allowing gamers to have the unfair advantage. Features Best-In-Class Virtual 7.1 Surround Sound Pre-configured calibrations for all Razer Audio products Works with any stereo headset/headphone Bass boost – For a thundering bass Sound normalization – Reduce loudness variation Voice clarity – For crystal clear incoming voice communication Voice level – Adjust the level of incoming voice communication Custom & 11 pre-set equalizer settings Calibrate to your individual preferences