Amazon.com: Razer ManO'War: Wireless 7.1 Surround Sound - 2.4 GHz Wireless Technology - Quick Action Controls - Unidirectional Retractable Mic - Gaming Headset Works with PC, PS4, & Xbox One : Video Games
User manual Razer ManO'War (English - 34 pages)
Razer Man O' War 7.1 gaming headset | eBay
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Razer announces its 7.1 wireless gaming headset, ManO'War, is releasing on April 17 | Shacknews