Logitech Wireless Combo MK270 The reliable wireless combo with the tiny Logitech Unifying® nano-receiver and carry around mouse. Advanced 2.4 GHz wireless So you can work or play in more places—like your comfy couch—the wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10 meters* Carry-around mouse You can take the sleek mouse anywhere you take your computer—thanks to its comfortable size and the tiny nano-receiver that stores in the mouse. Eight hot keys The things you do most are right at your fingertips with eight hot keys for instant access to your movies, music, Internet, e-mail, play/pause, volume and more. Plug-and-play simplicity Setup couldn’t be easier—you simply plug the wireless receiver into a USB port on your computer and you’ll be exploring QQ, shopping on Taobao and searching Baidu right away without software. Logitech Unifying receiver The tiny receiver stays in your laptop. Plus, you can easily add a compatible wireless mouse, keyboard or number pad—without the hassle of multiple USB receivers. Extended battery life A 24-month keyboard and 12-month mouse battery life—plus on/off switches—mean you can go for months without the hassle of changing batteries.** Full-size, spill-resistant keyboard The full-size keyboard with number pad, directional keys, and nine F-keys is comfortable, convenient and built to last. System Requirements Windows-based PC Windows® XP, Windows Vista® or Windows® 7 USB port 3-year limted hardware warranty Package Contents Keyboard Mouse USB receiver USB range extender 2 AAA (keyboard) and 2 AA (mouse) batteries User documentation