M240 Silent Bluetooth Mouse - GRAPHITE The M240 Silent by Logitech has reliable Bluetooth connectivity, delivering silent clicking with a comfortable design that fits in your hand perfectly. Built with a 4000 DPI optical sensor, you can stay productive and more focused with an 18 month battery life. Designed for precise control and excellent navigation, this Logitech mouse has build quality you can rely on, over and over again.       Pair and Play: Be connected effortlessly with a reliable Bluetooth connection, up to 10 metres without the need for a dongle or port. Compatible with Windows, MacOS, Chrome OS, Linux and Android. Comfortability: Incredibly lightweight, the Logitech M240 Silent allows you to be productive for longer thanks to a comfortable and contured design. Designed for both right and left-handed users, this mouse is ideal for any user and is compact so you can it anywhere you need it. Less Noise, More Focus: Experience less noise and more focus, thank to SilentTouch technology that reduces clicking sounds by 90%. Be more focused with the feel of every click, but virtually hearing nothing. The M240 delivers performance that you've never felt and used before.