Logitech's M240 Silent is the reliable Bluetooth mouse that 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's important. Bluetooth beauty Connects in seconds with a reliable pair&play Bluetooth connection. It works with Windows, macOS, Chrome OS, Linux, and Android. Less noise equals more focus SilentTouch Technology reduces clicking sounds, but keeps a familiar clicking feel. So you feel every single click, but hear virtually nothing. Long battery life 18 months battery life with auto sleep means you can go longer between battery changes. Comfortable shape, compact design Contoured shape follows the natural curve of your hand for improved comfort. Compact and wireless, the mouse fits easily with your laptop in a bag, so you can take it anywhere. The M240 Silent is designed to be equally comfortable for both left and right handed users.