Innovative SilentTouch technology for same typing and clicking feel with 90% less noise (1) Keyboard with 8 convenient shortcuts and full numpad for efficient data entry and easier navigation. Gives you one-touch access to play/pause, volume, mute, and the Internet Contoured and portable shape with smooth, precise clicking and pointing on most surfaces and SilentTouch technology for quiet clicks Connect in 3 seconds (2) with a tiny receiver that delivers a strong, reliable 2.4 GHz wireless connection and 10 m range for a clean, clutter-free desk area Compatible with Windows or Chrome OS and easily connects for plug-and-play simplicity Spill-proof design (3), durable keys, and sturdy tilt legs with adjustable height A 36-month keyboard and 18-month mouse battery life-plus on/off switches-means you can go for months without the hassle of changing batteries (4) Certified Carbon neutral.