Be just as productive away from your desk as you are when at your desk by using a portable logitech wireless keyboard and mouse with your computer. The compact mouse and keyboard offer a fast and reliable connection up to 10 metres from your computer thanks to logitech's advanced 2. 4 wireless technology. The combo is incredibly simple to use, just plug the nano receiver into your computer's usb port and flip the power switches on the keyboard and mouse to on. The power switches help to conserve the battery in each piece, allowing users to get approximately 24 months out of the keyboard's battery and 12 months out of the mouse's battery. Wireless keyboard & mouse features full-size keyboard features number pad, directional keys, nine f-keys, 8 shortcut keys advanced 2. 4 ghz wireless with up to 10m range approx. Battery life: keyboard - 24 months; mouse - 12 months nano-receiver plugs into usb port (both keyboard and mouse connect to one receiver) 2 aaa batteries (keyboard) and 1 aa battery (mouse) included compatible with windows-based pcs