Silent, Comfortable, Easy Meet M240 Silent, the reliable Bluetooth® mouse that frees up your workspace, connects in seconds, and delivers ultra-quiet productivity that lasts. A sculpted, contoured shape and 18 months of battery life lets you focus on what you do best. Quick and Easy Bluetooth M240 Silent connects in seconds with a reliable pair and play Bluetooth connection—no dongle or port required. Works with Windows, macOS, ChromeOS, Linux, Android. Less Noise, More Focus SilentTouch Technology reduces clicking sounds by 90% Left click dBA level measured by independent lab at 1m. Compared with Logitech M185., but keeps the familiar clicking feel you know and love. So you feel every single click, but hear virtually nothing. Less noise, great performance—and your neighbors in the cafe will thank you. Battery Life You Can Count On 18 months battery life with auto sleep, so you go longer between battery changes.8Battery life may vary based on user and computing conditions. You might just forget about batteries—a single AA batteries are pre-installed. Quality You Can Rely On The mouse is built using the same high quality standards that have made Logitech the global leader for mice and keyboards. Easy Navigation, Precise Control Navigate easier with a controlled line-by-line scrolling experience. No more annoying missed clicks - enjoy smooth and accurate cursor control on almost any surface. Increased Productivety Get more done by adding M240 Silent to your laptop. According to a recent study, laptop users who chose this mouse over a touchpad were 50% more productive with four Logitech standard mice and two standard, embedded trackpads and worked 30% faster.