Logitech G430 Surround Sound Gaming Headset with Dolby 7.1 Technology (Certified Refurbished) This Certified Refurbished product is tested & certified to look and work like-new. The product is backed by a 90 day warranty. Dolby 7.1 surround sound: Experience an immersive 360-degree sound field that lets you hear what you can't see Built for comfort: Lightweight design and soft sport cloth ear cups with 90-degree swivel for maximum comfort and a personalized fit Folding, noise-cancelling boom mic: Reduces background noise for clear voice pick up and rotates up and out of the way On-cable sound controls: Volume dial and mute switch are close at hand for quick audio adjustments