Wireless mouse M325 with 1000dpi resolution, treat hand to the comfy, contoured shape and soft rubber grips of the nice shape in the world. With up to 18 months of battery life, it is so hassle free you might just forget it runs on batteries. Pop the tiny unifying receiver in your notebook and leave it there. Can even add more devices. Plug it. Forget it. Add to it. Learn more about the unifying receiver. Designed for how you use the Web, our newest micro-precise scrolling makes reading your Facebook, shopping Amazon or scrolling through Google searches easier. Plus tilting the wheel moves backward or forward on the Web The long battery life virtually eliminates the hassle of changing batteries. Smart sleep mode saves power, while an indicator light eliminates surprises. The tiny receiver stays in laptop. Plus can easily add a compatible wireless device without the hassle of multiple USB receivers. Get the reliability of a cord with wireless convenience and freedom fast data transmission and virtually no delays or dropouts. From surfing the Web to navigating Facebook with precision clicking, pointing and dragging, everything you do on your laptop is just easier thanks to our advanced tracking technology. Mouse works with Windows, Mac and Linux.