HyperX Cloud Revolver S features Plug N Play virtual Dolby Surround 7. 1 audio — no software required. The USB digital signal processing card outputs consistent high-quality sound no matter what system you're using. Revolver S has a flappable audio control box so you can quickly Push-to-Dolby, mute and regulate mic/output levels. Signature HyperX memory foam and the wider headband provide even greater award-winning comfort.