Logitech Wireless Mouse M185. A simple, reliable mouse with plug-and-play wireless. You get the reliability of a cord with wireless convenience and freedom~fast data transmission and virtually no delays or dropouts. You~ll enjoy the high quality and reliability that have made Logitech the global leader for mice~plus a three-year limited hardware warranty. The tiny nano receiver works right away without software and is small enough to leave in your USB port so you won~t lose it. And on top of that, this comfy, contoured mouse treats your hand right.