Cooler Master Store offers its Cooler Master Storm Sirus Gaming Headset, model no. SGH-6000-KK5R1, for $99.99. Bag free shipping via coupon code "sirusbf100". That's the lowest total price we could find by $19. It features a retractable microphone, on-the-fly rear, center, and front speaker control, True 5.1 surround sound, 10Hz to 20kHz frequency response, 30mm driver, interchangeable ear-cups, and more.