The Vaddio USB Touch-Screen Multiviewer adds touch interactivity to your switcher. It works in conjunction with the AV Bridge MatrixMIX switcher for an easy-to-use, intuitive control interface that is ideal for both occasional and everyday users. Its capacitive touch creates an interactive surface for the AV Bridge MatrixMIX's multiview output for simple preset recall, video switching and graphics keying. Built-in speakers allow the operator to have a customizable audio mix from the switcher. This 27-inch LED back-lit monitor with a full-color LCD panel offers superior image quality.