Wireless keyboard and mouse combo that reduces over 90% of noise and maintains the same typing and clicking feel: Innovative SilentTouch technology for the same typing and clicking feel with 90% less noise Keyboard with 8 convenient shortcuts and full numpad for efficient data entry and easier navigation Contoured and portable shape with smooth, precise clicking and pointing on most surfaces and SilentTouch technology for quiet clicks Strong, reliable 2.4 GHz wireless connection with a 10 m range and a tiny USB receiver for a clean, clutter free desk area Compatible with Windows or Chrome OS and easily connects for plug-and-play simplicity Spill-proof design, durable keys and sturdy tilt legs with adjustable height A 36-month keyboard and 18-month mouse battery life—plus on/off switches—to reduce the hassle of changing batteries Gives you one-touch access to play/pause, volume, mute – and even your email. (1) Click and typing noise reduced by over 90% compared to Logitech MK270. Left click and typing dBA level measured by an independent lab at 1 meter. (2) Tested by Logitech with 50 persons in Switzerland (2022). (3) Tested under limited conditions (maximum of 60 ml liquid spillage). Do not immerse keyboard in liquid. (4) Battery life may vary based on user and computing conditions.