1. Introduction
This manual provides instructions for the Logitech MX Keys S Combo, a wireless keyboard and mouse set designed for enhanced productivity. It covers setup, operation, maintenance, and troubleshooting to ensure optimal performance of your devices.

Image 1.1: The Logitech MX Keys S Combo, featuring the wireless keyboard, MX Master 3S mouse, and a comfortable palm rest.
2. Package Contents
Verify that all items are present in your product package:
- MX Keys S Wireless Keyboard
- MX Master 3S Wireless Mouse
- Palm Rest
- Logi Bolt USB Receiver
- USB-C Charging Cable
- User Documentation

Image 2.1: All components included in the Logitech MX Keys S Combo package, laid out for identification.
3. Setup and Connection
The MX Keys S Combo offers flexible connectivity options:
- Power On: Ensure both the keyboard and mouse are charged and powered on. The power switches are typically located on the underside of the devices.
- Choose Connection Method:
- Logi Bolt USB Receiver: Insert the Logi Bolt USB receiver into an available USB port on your computer. The devices should connect automatically.
- Bluetooth Low Energy: Activate Bluetooth on your computer. On the keyboard/mouse, press and hold one of the Easy-Switch keys (usually F1, F2, F3 on the keyboard, or a button on the mouse) until the LED indicator blinks rapidly. Select the device from your computer's Bluetooth settings to pair.
- Install Logi Options+ Software: For full customization, including Smart Actions, button assignments, and lighting controls, download and install the Logi Options+ software from the official Logitech website.
4. Operating the Devices
4.1. MX Keys S Keyboard Features
- Fluid Typing Experience: The keyboard features spherically-dished keys designed for comfortable and precise typing.
- Smart Illumination: Backlit keys automatically adjust to ambient light and illuminate as your hands approach. Customization options are available via Logi Options+.
- Smart Actions: Create time-saving shortcuts in Logi Options+ to perform multiple actions with a single keystroke.
- Multi-Device Connectivity: Use the Easy-Switch keys to seamlessly switch between up to three connected devices.

Image 4.1: A user typing on the MX Keys S keyboard, demonstrating the intelligent backlighting feature.
4.2. MX Master 3S Mouse Features
- MagSpeed Scrolling: Experience ultra-fast and precise scrolling, capable of navigating 1000 lines per second.
- 8K DPI Optical Sensor: The high-precision sensor tracks accurately on virtually any surface, including glass.
- Quiet Click Buttons: Designed for a quieter clicking experience, reducing sound distractions.
- Customizable Buttons: Program buttons for specific functions using the Logi Options+ software.

Image 4.2: A user interacting with both the MX Keys S keyboard and MX Master 3S mouse, highlighting their ergonomic design.
5. Power Management
Both the keyboard and mouse are equipped with rechargeable Lithium Ion batteries. Use the provided USB-C charging cable to recharge the devices. Battery status indicators are present on both devices to inform you when charging is needed.
6. Maintenance
To maintain the performance and appearance of your MX Keys S Combo:
- Cleaning: Use a soft, lint-free cloth to wipe the surfaces of the keyboard, mouse, and palm rest. For stubborn dirt, a slightly damp cloth can be used. Avoid abrasive cleaners or solvents.
- Storage: When not in use for extended periods, store the devices in a cool, dry place.
- Battery Care: Avoid fully discharging the batteries frequently. Recharge them regularly to prolong their lifespan.
7. Troubleshooting
If you encounter issues with your MX Keys S Combo, consider the following:
- No Connection:
- Ensure devices are powered on and charged.
- Verify the Logi Bolt receiver is securely plugged into a working USB port.
- For Bluetooth, ensure Bluetooth is enabled on your computer and re-attempt pairing.
- Try connecting to a different USB port or another computer to isolate the issue.
- Intermittent Connection:
- Reduce the distance between the devices and the receiver/computer.
- Remove potential sources of interference (e.g., other wireless devices, large metal objects).
- Keys/Buttons Not Responding:
- Check battery levels.
- Clean around the affected keys/buttons to remove debris.
- Restart your computer.
- Software Issues: If Logi Options+ is not functioning correctly, try reinstalling the software.
For further assistance, refer to the Logitech support website.
8. Specifications
| Brand | Logitech |
| Model Number | 920-012274 |
| Hardware Platform | Mac, PC |
| Operating System Compatibility | Android 8.0 Oreo, Chrome OS, Linux, Mac OS X 10.15 Catalina, Windows 10, Windows 11, iPadOS 14 |
| Item Weight | 3.75 pounds |
| Product Dimensions (LxWxH) | 5.67 x 3.07 x 17.72 inches |
| Color | Black |
| Power Source | Battery Powered |
| Batteries | 1 Lithium Ion batteries required (included) |
| Connectivity Technology | Bluetooth |
| Special Features | Adjustable Tilt, Rechargeable Battery, Spill Resistant |
9. Warranty and Support
Logitech products are covered by a limited hardware warranty. For specific warranty terms and conditions, please refer to the warranty information included with your product or visit the official Logitech support website. The website also provides access to drivers, software, FAQs, and customer support contact information.
For the latest support and resources, visit: www.logitech.com/support







