Turtle Beach Call of Duty: MW3 Ear Force Foxtrot Limited Edition Universal Amplified Stereo Gaming Headset (Certified Refurbished) This Certified Refurbished product is manufacturer refurbished, shows limited or no wear, and includes all original accessories plus a 90-day warranty Exclusive: Custom military textured finish with MW3 insignia; Call of Duty embossed headband & discounts on Turtle Beach swag Chat volume automatically increases as the game volume gets louder and the In-line Amplifier gives you quick access to critical gaming audio controls, including chat and game volume Amplified Audio enhances game sounds for a more immersive experience, while Variable Bass Boost adds depth and realism to the game audio Stereo Expander widens the sound field for greater directional perception; USB Powered - No batteries required