The Lenovo Essential Wired Combo keeps things uncomplicated. This durable keyboard and mouse plugs into any USB port with wired reliability you can count on. The tough waterproof membrane can handle accidental spills without risking performance. Enjoy feel-good typing with quiet keys and number pad in a modern space saving layout. The ergonomic full-size mouse provides comfort and support for all day use. Increase your productivity as you smoothly complete tasks with the 1600dpi high resolutionoptical sensor. - Adjustable tilt legs