Altec Lansing developed the Upgrader series of headphones to give you a step up when replacing headphones. All Upgrader series headphone models are designed to offer great sound. But more than that, they provide a better, more customized fit for exceptional comfort. Features in-line volume control, titanium headband, and gold-plated plug for increases conductivity of audio signal, assuring the purest sound.Expires Dec 27, 2010