The reliable wireless combo with a tiny Logitech plug-and-forget receiver. Advanced 2.4 GHz wireless delivers the reliability of a cord plus wireless convenience for up to 10 meters, with virtually no delays or dropouts even in the busiest wireless environments. The receiver is so tiny, you can plug it in once and forget about it. Plus, the mouse features a built-in storage compartment, so you can take your mouse wherever you use your computer. A 36-month keyboard and 12-month mouse battery life”with auto-sleep and on/off switch lets you go years without the hassle of changing batteries. Reliable Plug and Play: The USB receiver provides a reliable wireless connection up to 33 ft (1), so you can forget about drop-outs and delays and you can take it wherever you use your computer Type in Comfort: The design of this keyboard creates a comfortable typing experience t