Introduction
The Logitech MX Keys S Combo for Mac is a premium wireless keyboard and mouse set designed to enhance productivity and comfort for macOS and iPadOS users. This combo features a dedicated Mac key layout, programmable functions via Logi Options+, and a Space Gray finish that complements Apple devices. The MX Keys S keyboard offers fluid, fast precision typing with smart illumination, while the MX Master 3S mouse provides precise, fast MagSpeed scrolling and an 8K DPI sensor. Both devices are engineered for extended use and are compatible with multiple Apple devices via Bluetooth Low Energy.

Image: The Logitech MX Keys S keyboard, MX Master 3S mouse, and a comfortable palm rest, showcasing the complete combo.
What's in the Box
Your Logitech MX Keys S Combo for Mac package includes the following components:
- MX Keys S Keyboard for Mac
- MX Master 3S Mouse for Mac
- Palm Rest
- USB-C Charging Cable (1 meter)

Image: A visual representation of the items included in the box: the MX Keys S keyboard, MX Master 3S mouse, palm rest, and USB-C charging cable.
Setup
Initial Connection
- Charge Devices: Before first use, connect both the keyboard and mouse to a power source using the provided USB-C cable. The keyboard has a 1500 mAh Li-Po battery, and the mouse has a 500 mAh Li-Po battery.
- Power On: Locate the power switch on both the keyboard and mouse and slide it to the 'On' position.
- Pairing: The MX Keys S Combo for Mac connects via Bluetooth Low Energy. To pair, press and hold one of the Easy-Switch buttons (1, 2, or 3) on the keyboard and mouse until the LED indicator blinks rapidly.
- Connect to Mac/iPad: On your Mac or iPad, navigate to Bluetooth settings and select 'MX Keys S' and 'MX Master 3S' from the list of available devices to complete the pairing process.
Connecting to Multiple Devices
The combo allows connection to up to three Apple devices (Mac computers and iPads) and seamless switching between them using the Easy-Switch buttons.

Image: A visual guide demonstrating how the keyboard and mouse can connect and seamlessly switch between up to three different Apple devices.
Logi Options+ Software
For full customization and advanced features, download and install the Logi Options+ software from the official Logitech website. This application allows you to:
- Program functions for macOS.
- Control backlighting duration and brightness.
- Automate repetitive tasks with Smart Actions.
- Customize mouse buttons and scroll wheel behavior.
Important Note: If FileVault is enabled on your macOS computer, it might prevent you from entering your password at start or reboot when connected via Bluetooth. In such cases, a Logi Bolt USB Receiver (not included) may be required.
Operating Instructions
Keyboard Operation (MX Keys S for Mac)
The MX Keys S keyboard is designed for a fluid and precise typing experience, optimized for Mac environments.
- Mac Key Layout: Features a dedicated Mac key layout for seamless integration with macOS.
- Spherically Dished Keys: Keys are shaped to match your fingertips, providing comfortable and accurate typing.
- Smart Illumination: Backlit keys light up as your hands approach and automatically adjust brightness based on ambient light. Illumination duration and brightness can be further controlled via Logi Options+.
- Programmable Keys: Customize function keys and other shortcuts using the Logi Options+ software to streamline your workflow.

Image: A user's hands typing on the MX Keys S keyboard, highlighting its Mac-specific key layout and the comfortable, fluid typing experience.

Image: The MX Keys S keyboard with its smart backlighting activated, demonstrating how keys illuminate for visibility in low-light conditions.

Image: An annotated diagram of the MX Keys S keyboard, pointing out key features such as programmable keys, Mac key layout, spherically dished keys, smart illumination, and USB-C quick charging.
Mouse Operation (MX Master 3S for Mac)
The MX Master 3S mouse offers exceptional precision and speed for navigation and control.
- MagSpeed Scroll Wheel: Scroll through 1,000 lines per second with electromagnetic scrolling, or switch to precise ratcheted scrolling.
- 8K DPI Sensor: The Darkfield high precision sensor tracks on virtually any surface, including glass, with up to 8000 DPI.
- Programmable Buttons: Seven customizable buttons (Left/Right-click, Back/Forward, App-Switch, Wheel mode-shift, Middle click) and a thumbwheel for horizontal scrolling.
- Quiet Clicks: Engineered for minimal click noise, providing a quieter work environment.

Image: A hand demonstrating the use of the MX Master 3S mouse, highlighting its fast and precise MagSpeed scroll wheel.

Image: An annotated diagram of the MX Master 3S mouse, detailing its features such as quiet clicks, MagSpeed scroll wheel, thumb wheel, 8K DPI sensor, programmable buttons, and Easy Switch button.
Enhanced Productivity with Logi Options+
Utilize the Logi Options+ software to unlock the full potential of your MX Keys S Combo. This includes setting up Smart Actions to automate repetitive tasks with a single keystroke, customizing application-specific settings, and managing device connections.

Image: A user interacting with the Logi Options+ software interface on a monitor, demonstrating how to automate repetitive tasks for increased efficiency.

Image: An overhead view of a user working with the MX Keys S Combo, emphasizing the ergonomic design and comfort for long hours of productivity.
Maintenance
Cleaning
- Use a soft, lint-free cloth to wipe down the surfaces of the keyboard and mouse.
- For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner.
- Avoid spraying liquids directly onto the devices or using harsh chemicals.
- Use compressed air to clear debris from between keyboard keys.
Battery Care
The MX Keys S Combo features rechargeable Li-Po batteries. To maximize battery life:
- Charge the devices using the provided USB-C cable.
- Avoid extreme temperatures, as they can affect battery performance.
- Store the devices in a cool, dry place if not in use for extended periods.

Image: A close-up of the MX Keys S keyboard, emphasizing its construction with recycled plastic, low carbon aluminum, and smart battery efficiency, contributing to a positive future.
Troubleshooting
Connectivity Issues
- Ensure Devices are On: Verify that both the keyboard and mouse are powered on and charged.
- Re-pair Bluetooth: If connection is lost, try re-pairing the devices through your Mac's or iPad's Bluetooth settings.
- Interference: Move the devices closer to your computer and away from other wireless devices that might cause interference.
- FileVault: If you use FileVault on macOS, you might need a Logi Bolt USB Receiver (not included) to enter your password at startup or reboot.
Keyboard Backlighting Not Working
- Check Battery Level: Low battery can disable backlighting. Charge the keyboard fully.
- Adjust Brightness: Use the dedicated brightness keys on the keyboard or adjust settings in Logi Options+.
- Ambient Light Sensor: Ensure the ambient light sensor (located near the top of the keyboard) is not obstructed.
Mouse Tracking Issues
- Clean Sensor: Ensure the optical sensor on the bottom of the mouse is clean and free of debris.
- Surface: While the mouse tracks on most surfaces, try a different surface or a mouse pad if you experience erratic tracking.
- DPI Settings: Adjust the DPI sensitivity in Logi Options+ to suit your preference.
Specifications
| Feature | Detail |
|---|---|
| Brand | Logitech |
| Model Number | 920-012592 |
| Operating System Compatibility | macOS 10.15 or later, iPadOS 14 or later |
| Item Weight | 2.1 pounds (Keyboard & Mouse Combo) |
| Product Dimensions | 16.94 x 5.18 x 0.81 inches |
| Color | Space Grey |
| Power Source | Battery Powered (Rechargeable Lithium Polymer) |
| Keyboard Battery | 1500 mAh Li-Po |
| Mouse Battery | 500 mAh Li-Po |
| Connectivity Technology | Bluetooth Low Energy |
| Keyboard Description | Membrane, Backlit, Mac Key Layout |
| Mouse Sensor Technology | Darkfield High Precision (8K DPI) |
| Mouse Buttons | 7 buttons + Scroll Wheel + Thumbwheel + Gesture button |
| Special Features | Portable, Programmable Buttons, Wrist Rest, Programmable Keys, Rechargeable |
| Country of Origin | China |
Warranty and Support
Logitech products typically come with a limited hardware warranty. For specific warranty details, registration, and technical support, please visit the official Logitech support website. You can find FAQs, troubleshooting guides, and contact information for customer service there.
Ensure you retain your proof of purchase for warranty claims.





