Sennheiser GSP 550 PC Gaming Headset with Dolby 7.1 Surround Sound Headset | eBay
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Amazon.com: Sennheiser GSP 550 PC Gaming Headset with Dolby 7.1 Surround Sound, Flip-to-Mute microphone, USB connectivity for Dekstop and Laptop compatibility, Open-back ear cups, breathable fabric Headset, black : Video Games
Sennheiser PC 333 D Over-Ear Headphones, Adjustable Headband, Volume Control, Built-In Microphone, Noise-Canceling with 3D G4ME1 7.1 USB Sound Card, USB Extension Cable, Carrying Pouch, Black, Silver, 504126 - Walmart.com