The Lenovo 520 Wireless Mouse is your ideal companion: perfect for on the go or office use. A plug-and-play device, it provides cordless convenience with 2.4 GHz wireless technology via nano USB receiver. Receive all-day comfort and maximum ergonomics with this unique and contoured design and durable soft touch finish. The Lenovo 520 Wireless Mouse is simply the mouse-of-choice: easy-to-use, mobile and most importantly, reliable.