Master your flow like never before with MX Keys S — a low-profile wireless keyboard that offers a fast fluid precise typing experience, smart illumination, and customizable, time-saving Smart Actions. MX Keys S also features smart backlighting that lights up as your fingers approach the keyboard and automatically brightens or fades to suit the time of day. Now you have more control of your backlighting brightness and duration with Logi Options+. Number of keys: 104