The Logitech MX800 Wireless Combo pairs a comfortable ergonomic mouse with a stylish illuminated keyboard for the perfect wireless office solution. Designed for comfort and simplicity, the MX800 uses Logitech's unifying receiver to simplify your wireless connection with a single dongle. The Laser etched Incurve technology helps keep your fingers in the optimal position for comfort to reduce strain from extended use. Darkfield technology allows your mouse to track on almost any surface - giving you more options for your office setup. Backed by a 3 year warranty.