Logitech Wireless Combo MK330. The combo that puts entertainment and portability at your fingertips. With 11 hot keys and 12 programmable F-keys, you\'ll enjoy instant access to the things you do most. You can easily navigate your favourite websites and applications wherever you use your computer. And you can also take the portable, comfortable mouse wherever you go. The low-profile, whisper-quiet keys help make typing IMs or emails nice and easy. 24-month keyboard and 12-month mouse battery life--with auto-sleep and on/off switch--lets you go years without the hassle of changing batteries. / Keyboard battery life calculation based on an estimated two million keystrokes/year in an office environment. User experience may vary. Mouse battery life may vary based on user and computing conditions. o Wireless keyboard o Wireless mouse o Logitech Unifying receiver o USB range extender o 2 AA keyboard) batteries o 1 AA (mouse) battery o User documentation o 3-year manufacturer\'s guarantee and full product support