The Microsoft Wireless Mobile Mouse 1850 boasts a compact, cable-free design and is ideal for moving quickly through documents and web pages on your PC or Mac. This Microsoft mouse has a plug-and-go nano transceiver which plugs into a USB port, enabling wireless usage at home or on the go. ALL you have to do is plug it in and it's ready for use with no installation required. The 1850 Mouse runs off one AA battery for up to six months, providing long-lasting use before it needs replacing. With three programmable buttons, including a scrolling wheel, you can navigate your laptop or desktop with ease when using the Microsoft Wireless Mobile Mouse 1850.