Logitech MK520 Wireless Keyboard and Mouse Combo &mdash; Keyboard and Mouse, Long Battery Life, Secure 2.4GHz Connectivity FULL-SIZE FUNCTIONALITY  Have the functionality of a full-size keyboard without sacrificing form or function. The MK520 includes a stylish and streamlined keyboard and ambidextrous mouse PRECISION MOUSE WORKS IN EITHER HAND  The M310 wireless mouse features soft rubber grips and can be used in either hand. It provides the precision needed for fine applications LONG BATTERY LIFE  Tired of short battery life? The MK520 package boasts significant battery run time. Using 3 regular batteries, the keyboard will last for up to 3 years, and the mouse for up to 18 months SIMPLE SETUP  Simply plug the Logitech Unifying receiver into your computer and youre ready to worknothing else is needed ENCRYPTED CONNECTION  Enjoy the flexibility of working wirelessly with an encrypted connection. The MK520 utilizes 128-bit AES encryption and a 2.4GHz signal to keep your connection fast and secure System Requirements: Windows XP, Windows Vista, Windows 7, Windows 8, Windows 10,USB port,Internet connection (for software download),Chrome OS