Logitech Wireless Mouse M325. A better mix of precision and comfort-with designed-for-Web scrolling. Designed for how you use the Web, our newest micro-precise scrolling makes reading your Facebook or scrolling through Google searches easier.* Plus, tilting the wheel left or right moves you backward or forward on the Web. Its feel-good, contoured shape and textured rubber grips help keep your hand happy-even after long hours. With up to 18 months of battery life, it virtually eliminates the hassle of changing batteries.** The tiny Logitech Unifying receiver stays in your laptop and lets you add compatible wireless devices to the same receiver. Plus, you'll enjoy precise clicking and pointing while navigating your favorite websites thanks to Logitech Advanced Tracking Technolog. Designed to improve your online experience, the wheel also helps perfect scrolling when you're using other applications, such as Microsoft Office or Adobe PDF. Battery life may vary based on user and computing conditions.