** Dont just win. Dominate.** ** Steel Series 9H with Dolby Technology** Delivering a tournament-grade audio experience, incredible digital features, & best-in-class comfort, the Steel Series 9H with Dolby Technology is our best competitive gaming headset yet. Equipped with an advanced USB (Universal Serial Bus) soundcard, the Steel Series 9H provides users with Dolby technology, Steel Series Engine support & much more. ** Dolby Technology** The Steel Series 9H when used with the included advanced USB (Universal Serial Bus) soundcard features two Dolby technologies. Dolby Headphone allows up to 7.1 channels of realistic multi-channel surround sound. Dolby Prologic IIx can convert a simple stereo signal into a rich, surround sound experience. In addition, it can convert a true 5.1 signal in a full 7.1 surround experience allowing for multiple listening modes & a more realistic sound. ** Steel Series Audio** Building on the historic Steel Series audio tradition, a custom-engineered soundscape features a wide dynamic range, which makes it possible for 9H to deliver a balanced & linear tournament-grade advantage. Powerful, detailed audio experience via tournament grade, next generation Steel Series audio drivers that feature a wide dynamic range that means that you can hear all levels of your audio: lows, mids, & highs. Our audio engineers custom-engineered the soundscape for the best possible gaming experience. Advanced components like high grade mylar film to further perfect the sound with added clarity & no distortion. ** Retractable Microphone** The 9H features a retractable microphone system. Pull it out when you need it. Hide it in the left earcup when you dont. **SMART NOISE-CANCELLING MIC** When the Steel Series 9H headset is plugged into its advanced USB (Universal Serial Bus) sound card, it enables a noise cancellation microphone. When youre playing multiplayer, its more than just skill that will win you achievements, its communication that will help you dominate. To suppo