The Siberia 650 USB gaming headset features customizable RGB illumination with 16.8 million colors. It delivers best-in-class sound and comfort for hours of gaming on your PC and Mac. Features: Superior Sound The Siberia 650 has rich 50mm speaker drivers, uses Dolby's ProLogic IIx and Dolby Headphone tech, and has a 10-band EQ. There's also a microphone mute and volume dial built right into each earcup. Extreme Comfort The suspension headband and memory foam earcups have been engineered to make the Siberia 650 one of our most comfortable headsets ever. The earcups inner openings have been widened on the Siberia 650 for a nice, roomy fit on your ears. Customization With SteelSeries Engine 3, you can choose from 16.8 million colors, displayed on the vivid LEDs that encircle the earcups. With the external sound card, you can customize your sound options, too. Options like the 10-band equalizer, noise cancellation, mic feedback, and much more.