Features:Comfort and productivity go hand-in-hand thanks to concave keys, a cushioned palm rest and a hyper-fast scrolling mouse.Three-year battery lifeThe batteries in both the keyboard and mouse last up to three full years, so you can forget the hassle, expense and waste of frequent battery changes.*Logitech® Incurve keys™Concave keys with softly-rounded edges position your fingers properly and invite your fingertips to glide from key to key—keeping you comfortable for hours.Low profile, longer key travelNot easily found on many low-profile and laptop keyboards, longer key travel improves comfort and your overall typing experience.Cushioned palm restYour hands can relax—the cushioned palm rest feels so much better than hard plastic.Sculpted mouseIt positions your hand and fingers comfortably and naturally.Hyper-fast scrollingYou’ll fly through long documents and Web pages with just a flick of the nearly frictionless scroll wheel.LCD dashboardIt gives you at-a-glance icon status of your battery, Caps Lock, Scroll Lock and Num Lock, so you won’t skip a beat while typing.Logitech Unifying receiverThe tiny receiver stays in your laptop. Plus, you can easily add another compatible wireless mouse or keyboard—without the hassle of multiple USB receivers.Logitech Advanced 2.4 GHz wireless connectivityYou can confidently work and play where you please. Encrypted, secure cordless technology ensures you a reliable connection with virtually no lags or dropouts.**System RequirementsWindows-based PCWindows® XP, Windows Vista®, or Windows® 7, Windows® 8USB portPart NumberPN 920-002416Warranty Information3-year limited hardware warrantyPackage ContentsKeyboardMouseUSB 2.4 GHz Unifying receiver4 AA alkaline batteries User documentation