·Quick, 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%, 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. You might just forget about batteries a single AA batteries are pre-installed.
