Introducing MX Mechanical & MX Master 3S. Combined for ultimate precision and performance. Both products are compatible with Windows, macOS, Linux(5), Chrome OS(5), iPadOS(5), Android(5) operating systems. MX Mechanical Dimensions: 26.10mm (including keycaps) x 433.85 mm x 131.55 mm Weight: 828g Rechargeable Li-Po (1500 mAh) battery Important: FileVault might be enabled on your macOS computer, which could prevent you from entering your password at start or reboot when connected to Bluetooth. In this case, use Logi Bolt USB Receiver. MX Master 3S Dimensions: 2 x 3.3 x 4.9 in (51 x 84.3 x 124.9 mm) Weight: 4.97 oz (141 g) Rechargeable Li-Po (500 mAh) battery Sensor technology: Darkfield high precision Buttons: 7 buttons (Left/Right-click, Back/Forward, App-Switch, Wheel mode-shift, Middle click), Scroll Wheel, Thumbwheel, Gesture button Wireless operating distance: 33 ft (10 m) (6) Logi Bolt Receiver(4) included in both products: 18.4 mm x 14.4 mm x 6.6 mm Weight: 2g Optional software(3) : Logi Options+ Footnotes: (1) 4 mm minimum glass thickness (2) Compared to MX Master, MX Master 3S has 90% less Sound Power Level left and right click, measured at 1m. (3) Requires Logi Options+ software, available for Windows and macOS (4) Not compatible with Logitech Unifying technology (5) Device basic functions will be supported without software for other systems than Windows and macOS (6) Wireless range may vary depending on operating environment and computer setup. (7) Battery life may vary based on user and computing conditions. See moreMulti-device, multi-OS: Pair with up to 3 devices via Bluetooth Low Energy or Logi Bolt USB receiver(4) - both keyboard and mouse work with Windows, macOS, Chrome OS(5) , Linux(5) , iPadOS(5) and more. Flow across multiple devices: Control multiple devices across Windows and macOS operating systems, and seamlessly transfer text, images, and files between them (3). More customization, faster workflow: Customize mouse buttons, keyboard Fn-keys and more to ramp up your workflow in the improved Logi Optionsplus (3). Magspeed Scrolling: With MX Master 3S, scroll 1,000 lines at once before stopping on a pixel, shifting between ratchet and hyper-fast scroll modes. Smart illumination: Backlit keys light up the moment your hands approach, and automatically adjust to suit changing lighting conditions. Combined for ergonomic productivity: Low-profile mechanical keys of MX Mechanical, combined with the hand-sculpted MX Master 3S lets you enjoy hours of productivity in comfort. Quiet performance duo: Pair MX Mechanical low-profile keys and 3 switch choices with MX Master 3S’s 8K DPI track-on-glass (1) sensor and 90% less click noise (2).