Perfect for the mobile professional, the PRESENCE Grey UC is a compact device designed to deliver high quality audio clarity all day long. With SpeakFocus technology designed to intelligently adapt to the user's voice and filter out disruptive background noise, in addition to WindSafe technology specifically designed to ensure maximum audio clarity. With a comfortable design and battery life of up to 10 hours talk time, the PRESENCE allows you to maintain limitless levels of productivity throughout the day.