The keyboard s full-size layout gives you the room you need to type comfortably with all the keys where you expect them to be. The concave design and softly rounded edges of the whisper-quiet low-profile Logitech Incurve keys position your fingers properly and invite your fingertips to glide from key to key hour after hour. The palm rest gives your hands the perfect place to rest when you re not typing. And you can store your keyboard standing up to free up space on your desk when you re not using it. The full-size mouse feels good in either hand even after long hours of use thanks to its hand-friendly contoured design with soft rubber side grips. And laser precision means you ll enjoy smoother tracking on just about any surface so you can say goodbye to the frustrations of basic mice and tricky touchpads.* * The laser sensor does not work on glass or mirrors. Up to three-year keyboard and one-year mouse battery life. Better power management practically eliminates the need to replace 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. The tiny Logitech Unifying receiver is small enough to stay in your laptop and connects both the included mouse and keyboard so both are ready to use whenever you need them. Plus you can easily add another compatible mouse keyboard or number pad without the hassle of multiple USB receivers. Logitech Advanced 2.4 GHz wireless connectivity gives you the reliability of a cord plus wireless convenience and freedom fast data transmission virtually no delays or dropouts and 128-bit AES encryption.