Advanced 2.4 GHz wireless technology To work or play from more places as if you were on the couch: the wireless connection almost completely eliminates lag. interruptions and interference and offers a range of up to 10 meters Logitech Unifying receiver The tiny receiver remains in the laptop. Also. you can easily add another mouse. compatible wireless keyboard or numeric keypad. without the hassle of having to use multiple USB receivers. Portable mouse Conveniently sized with a tiny nano receiver that stores inside. the attractive mouse is easily carried with the computer. Long battery life The keyboard's batteries last 24 months and the mouse's 12 months, and in the meantime you live without the worry of battery changes. Eight quick access buttons Your most frequent activities close at hand with eight quick access buttons for immediate access to movies. music. Internet. email. play pause functions. volume and much more. Splash-resistant full-size keyboard Full-size keyboard with numeric keypad. arrow keys and nine F keys is comfortable. practical and robust. Plug and Play simplicity Installation is a breeze: just connect the wireless receiver to your computer's USB port to start using the keyboard immediately without software.