Compare with M185. The Logitech Wireless Silent Mouse delivers a better mix of precision and comfort with designed-for-web scrolling and over 90% noise reduction on click sound. With optical tracking, precise scrolling makes reading your Facebook, shopping online or scrolling through Google searches easier. 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. The Logitech Wireless Silent Mouse features a contoured shape, feet made of high-performance material, and a rubber wheel for quiet gliding and scrolling. A plug-and forget nano receiver stays in your laptop and gives you a reliable connection up to 33 feet away. Enjoy quiet browsing when you use the Logitech Wireless Silent Mouse.