The Lenovo 530 portable wireless mouse is the perfect accessory for those who travel for work or anyone who wants greater control and freedom. Weighing just 65 g (0.14 lbs), it travels light and easy – just slip it into your carrying case or laptop bag and work wherever you go! It's also a great optical mouse for those who work from home, college students, or anyone else who wants to avoid the clutter of cables around their laptop or desktop computer. With 1200 DPI and powered by 2.4 GHz wireless technology via a Nano USB connection, you'll enjoy the long, 12-month battery life*. We've even included an AA battery so you can plug in the Nano receiver and get to scrolling through your day with speed and ease.The 3-click functionality of this USB mouse is designed for left- or right-hand use, and its ergonomic shape makes it ideal for everyone. The left and right click buttons last up to 8 million clicks, while the center wheel both scrolls and clicks. Plus, there's a space inside to store the USB receiver when you're traveling, so you don't need to worry about missing pieces when you get to your destination. * Battery life may vary based on usage.