logitech wireless desktop mk710. combination of comfort and productivity in one set. low profile keyboard has concave keys logitech incurve keys, that support the correct position of the fingers and their softly rounded edges fingertips to switch seamlessly between keyboard. with battery life, keyboard and mouse up to three years is practically not need to change batteries. very quick scrolling allows quick browsing long documents or switch to precise shift. for example, the lcd panel informs you that the caps lock is turned on, and before you write a whole page. a tiny logitech unifying receiver stays in your laptop and allows you to connect other compatible wireless mouse or keypad. keyboard battery life calculation based on an estimated number of two million keystrokes per year in an office environment. the method of the user may vary. mouse battery life may vary based on user and usage conditions.main features:battery life keyboard and mouse up to three years. with improved power management is practically need to change batteries.the keyboard has logitech incurve keys and soft palm rest. support concave keys position your fingers properly, and their softly rounded edges to fingertips for hours seamlessly between keys. the keys are so comfortable that you can think of that are not manufactured specifically for your fingers.very fast allows quick browsing through documents using the scroll wheel, which shows almost no friction, or switch to precise shift, which is suitable for navigation in lists, presentations and collections of images.the lcd panel provides a quick glance on the icons to get information about the battery status and functions of the caps lock, scroll lock and num lock, so the writing will not miss a thing.the tiny wireless receiver logitech unifying receiver stays in your notebook. when moving no need to unplug, so you do not have to worry much about damage or loss. to the same wireless receiver, you can easily add another compatible mouse, keyboard or keypad.system requirements:windows xp, windows vista or windows 7usb portcd-rom drivepackage contentskeyboardmouseusb 2.4 ghz unifying receiver4 aa alkaline batteries (installed)cd with softwareuser documentation