About this item 
ENGINEERED FOR SPEED AND PRECISION: MX Keys S, fast fluid laptop-like typing combined with the fast, precise scrolling of MX Master 3S 
FLUID TYPING EXPERIENCE: Laptop-like profile with spherically dished keys shaped for your fingertips deliver a fast, fluid, precise, quieter typing experience 
SCROLL 1000 LINES PER SECOND: with MagSpeed, Logitech’s fastest and most precise scroll wheel (2) and an 8K DPI sensor that tracks anywhere – even on glass (4) 
AUTOMATE REPETITIVE TASKS: Easily create and share time-saving Smart Actions shortcuts to perform multiple actions with a single keystroke with the Logi Options+ app (1) 
SMARTER ILLUMINATION: Backlit keys light up the moment your hands approach. Have more control of backlighting duration and brightness on Logi Options+ (1) 
MORE COMFORT, DEEPER FOCUS: Both devices are engineered for hours of work. Stable keyboard with an optimum angle and mouse sculpted for your hand for better wrist posture 
MULTI-DEVICE, MULTI OS COMBO: Work seamlessly on up to 3 devices on nearly any operating system via Bluetooth Low Energy or included Logi Bolt USB receiver(8) 
MADE WITH RECYCLED PLASTIC: Both MX Keys S and MX Master 3S pale gray include certified post consumer recycled plastic — MX Master 3S 22%; MX Keys S 11% (9)