SPECIFICATIONS | Model | MK275 | Keyboard Interface | USB 2.4 GHz wireless | Mouse Included | Included | Warranty | 3 Years | Note | ***Features, Price and Specifications are subject to change without notice. | ***Images used for representation purpose only | FEATURES | With comfortable, quiet typing, a sleek yet sturdy design and a plug-and-play USB connection, the Logitech wireless combo MK275 gives you a better typing experience that''s built to last. | • Package Content : Keyboard & Mouse | • Hardware Platform : Windows Xp, Vista, Windows 7 & 8 | • Operating System : Windows | • Lithium Battery Energy Content 1.5 Watt Hours | • 2.4Ghz Wireless Connection : A Tiny Logitech Nano-Receiver Connects Both the Keyboard & Mouse Using Just One USB Port | • Long Battery Life : Get Up to 24 Months of Keyboard Power & 12 Months of Mouse Power Without Changing Batteries | • Eight Hot Keys : Instantly Access Your Movies, Music, the Internet, E-Mail, Volume, Play/Pause & More | • All-In-One Setup : Includes a Full-Size Keyboard with Quiet, Low-Profile Keys Plus a Portable Contoured Mouse for Comfortable Control