The Keyboard - Mouse Combo Wireless Lenovo 510 is a set that fits perfectly in your office with its simple and elegant design. It connects wirelessly to your computer using a small Nano USB wireless receiver. Made with a waterproof design and special anti-fade key coating, it is extremely comfortable and offers you typing accuracy. The accompanying wireless mouse has an ambidextrous design and features an optical sensor with a resolution of up to 1200 DPI.