Light, modern design meets wireless performance and all-day comfort. Take control with precise detent scrolling, soft thumb rest, and two programmable buttons. All-day comfort Ergonomic design promotes neutral hand position Long battery life Holds a charge for up to 15 months Connect up to three devices And switch seamlessly between them Natural hand position Featuring a soft, easy-to-grip thumb rest for added comfort. Icon of a mouse with direction symbols Smooth and precise, Machined aluminium scroll wheel, teflon base and precise tracking sensor allow for easy navigation on a variety of surfaces.3 Icon of a mouse Light, durable design, Featuring seamless finishes