Designed to deliver high-quality, discrete 5.1 surround sound, the Ear Force Charlie has 4 premium speakers in each ear cup, including 40mm subwoofers for extended bass and extraordinary dynamic range. Providing hyper-realistic directional audio perception, the front and surround speakers in the Ear Force Charlie are acoustically angled, so you can pinpoint specific sounds more accurately than conventional flat speakers. The Ear Force Charlie amplifier gives you quick access to independent controls for all 5.1 audio channels, letting you tune your headset for any combat situation. The headset and amplifier also feature a quick disconnect jack so you can easily detach it without having to unplug the 5.1 outputs from your PC. The Ear Force Charlie is the ultimate weapon for Call of Duty fans seeking to get the most out of their PC gaming experience. If youre serious about Call of Duty, and all your games, then get serious about the sound and step up to the Limited Edition MW3 Ear Force Charlie. Features: - Multi-Speaker Surround Sound Eight amplified speakers, including dual subwoofers, Acoustically Angled Speakers delivers more realistic directional audio perception, - 5.1 Channel Amplifier, Independent controls for all 5.1 audio channels. - Quick Disconnect easily detach your headset from your computer. - Microphone Monitor lets you hear what youre saying while talking. USB Powered no, batteries required. XBOX 360 Compatible. - Works as amplified stereo headset on the XBOX 360.