Corsair Gaming H2100 Dolby 7.1 Wireless Gaming Headset (CA-9011127-NA) 2.4GHz wireless freedom up to 40ft + 10 hours of uninterrupted gaming Dolby 7.1 surround delivers lethally accurate positional audio Oversized 50mm neodymium drivers, comfortable microfiber-wrapped memory foam ear pads advanced unidirectional noise-cancelling microphone. Please refer the User Manual and Quick start guide before use. Compatibility - Windows 8, Windows 7, or Windows Vista, Internet connection (for software download) 2.4GHz wireless freedom up to 40ft + 10 hours of uninterrupted gaming Dolby 7.1 surround delivers lethally accurate positional audio Oversized 50mm neodymium drivers Comfortable microfiber-wrapped memory foam ear pads Advanced unidirectional noise-cancelling microphone 2 year warranty