Logitech Announces the G633 & G933 Artemis Spectrum Headsets, First Headsets to Support Both 7.1 Dolby Surround Sound & DTS Headphone:X | High-Def Digest
Logitech Usb 2.4Ghz Adapter/Receiver For Logitech Artemis Spectrum G933 Wireless 7.1 Surround Sound Gaming Headset - Newegg.com