Logitech Lifestyle Computer Mouse M240 Meet M240 Silent, the reliable Bluetooth mouse that frees up your workspace, connects in seconds, and delivers ultra-quiet, long-lasting productivity. A sculpted, contoured shape and 18 months of battery life let you focus on what you do best. M240 Silent connects in seconds with a reliable Bluetooth connection - no dongle or port needed. Works with Windows, macOS, ChromeOS, Linux, Android. Compared to Logitech M185 but retains the familiar click feel you know and love. So you feel every click, but hear virtually nothing. Less noise, great performance - and your neighbours at the café will thank you. 18-month battery life with auto sleep mode so you can go longer between battery changes. Stay productive longer with the comfortable, contoured shape that follows the natural curve of your hand. Compact and wireless, the mouse easily fits in a bag with your laptop, so you can take it anywhere. M240 Silent is designed to be equally comfortable for both left- and right-handed users. Specifications: • Dimensions: 10 x 6 x 4 cm • Silent Touch technology: 90% (left/right click, middle click) • DPI Range: 400-4000, 100 DPI steps • Battery life: 18 months • Wireless range: 10 meters