Introduction
The Logitech MX Ergo S Advanced Wireless Trackball Mouse is designed for enhanced control and ergonomic comfort. It features advanced thumb control for precision tracking, a 20-degree adjustable tilt for improved forearm posture, and customizable buttons to boost productivity. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your device.

Figure 1: Logitech MX Ergo S Advanced Wireless Trackball Mouse (Graphite)
Setup Guide
1. Package Contents
Ensure all items are present in your package:
- Logitech MX Ergo S Advanced Wireless Trackball Mouse
- Logi Bolt USB Receiver (may be found inside or alongside the mouse packaging)
- User Documentation (this manual)
2. Initial Charging
Before first use, it is recommended to fully charge your MX Ergo S mouse. The mouse features a USB-C charging port.
- Connect a USB Type-C to Type-C or USB Type-A to Type-C cable (not included) to the mouse's charging port and to a power source (e.g., computer USB port, USB wall adapter).
- A 1-minute charge provides up to 24 hours of use, while a full charge can last up to 120 days depending on usage.
3. Connectivity Options
The MX Ergo S offers dual wireless connectivity:
- Logi Bolt USB Receiver:
Insert the Logi Bolt USB receiver into an available USB port on your computer. The mouse should automatically connect.

Figure 2: Logi Bolt USB Receiver connection point (indicated by diagram)
- Bluetooth:
Ensure Bluetooth is enabled on your device. Press the Easy-Switch button on the mouse to select an available channel (1 or 2). The LED indicator will blink rapidly. Go to your device's Bluetooth settings and select "MX Ergo S" from the list of available devices to pair.
Use the Easy-Switch button to seamlessly switch between up to two connected devices.
Operating Instructions
1. Basic Functions
- Left Click: Primary selection and activation.
- Right Click: Accesses contextual menus.
- Scroll Wheel: Navigates vertically through documents and web pages.
- Trackball: Controls the cursor movement on the screen with your thumb.

Figure 3: Advanced thumb control for precise cursor movement
2. Advanced Thumb Control (DPI Button)
The MX Ergo S features a dedicated button near the trackball to instantly switch between speed and high-precision tracking modes. This allows for fine-tuned control when needed, such as for graphic design or detailed work, and faster navigation for general use.
3. Customizing Buttons with Logi Options+ App
Unlock the full potential of your MX Ergo S by installing the Logi Options+ App. This application allows you to:
- Customize the function of the 6 programmable buttons.
- Create time-saving shortcuts.
- Set up Smart Actions for automated tasks.
Download the Logi Options+ App from the official Logitech website.

Figure 4: Enhance productivity with the Logi Options+ App
4. Ergonomic Features
The MX Ergo S is designed for comfort and reduced muscle strain:
- Adjustable Tilt: The mouse features a 20-degree tilt angle, which can be adjusted to promote a more natural forearm posture, reducing muscle strain.
- Sculpted Design: Its contoured shape and soft rubber grip are certified by ergonomists for improved comfort, fitting medium to large-sized hands.
- Quiet Clicks: The main buttons are designed for 80% quieter clicks compared to previous models, providing a more pleasant user experience.

Figure 5: The 20-degree tilt angle for improved forearm posture
Maintenance
1. Cleaning Your Trackball Mouse
Regular cleaning ensures optimal performance and longevity of your MX Ergo S mouse.
- General Cleaning: Use a soft, lint-free cloth slightly dampened with water or a mild, non-abrasive cleaner to wipe the exterior of the mouse. Avoid getting moisture into openings.
- Trackball Cleaning: The trackball can be easily removed for cleaning. The bottom of the mouse is magnetized, allowing the trackball to be pulled off quickly for access. Clean the trackball itself and the internal rollers with a dry, soft cloth or cotton swab. Ensure no debris obstructs the rollers.
- Avoid Harsh Chemicals: Do not use harsh chemicals, abrasive cleaners, or solvents as they may damage the surface or internal components.
Troubleshooting
If you encounter issues with your Logitech MX Ergo S mouse, refer to the common problems and solutions below:
- Issue: Mouse is not responding or connecting.
- Check Battery: Ensure the mouse is sufficiently charged. Connect it to a power source using a USB-C cable.
- Check Connectivity:
- If using Logi Bolt receiver, ensure it is securely plugged into a working USB port. Try a different USB port.
- If using Bluetooth, ensure Bluetooth is enabled on your computer and the mouse is selected in your device's Bluetooth settings. Try re-pairing the mouse.
- Easy-Switch Button: Press the Easy-Switch button on the mouse to cycle through connected devices (channels 1 and 2) to ensure you are on the correct channel.
- Restart Devices: Restart your computer and the mouse (turn off and on) to refresh connections.
- Issue: Trackball movement is erratic or sticky.
- Clean Trackball and Rollers: Remove the trackball and clean it along with the internal rollers as described in the Maintenance section. Dust or debris can interfere with smooth movement.
- Issue: Buttons are not customizable or Logi Options+ App is not working.
- Install/Update App: Ensure you have the latest version of the Logi Options+ App installed from the official Logitech website.
- Permissions: Check if the app has necessary permissions on your operating system (e.g., accessibility permissions on macOS).
Technical Specifications
| Feature | Description |
|---|---|
| Brand | Logitech |
| Model | MX Ergo S |
| Color | Graphite |
| Connectivity Technology | Bluetooth, Logi Bolt USB |
| Movement Detection Technology | Optical |
| Special Features | Wireless, Portable, Lightweight, Ergonomic Design, Adjustable Tilt (20 degrees), Programmable Buttons, Quiet Clicks, USB-C Rechargeable |
| Battery Life | Up to 120 days on a full charge; 24 hours from 1-minute charge |
| Recycled Plastic Content | 20% certified post-consumer recycled plastic |
Warranty and Support
1. Warranty Information
Logitech products are manufactured to high quality standards and come with a limited hardware warranty. Please refer to the warranty card included with your product or visit the official Logitech website for detailed warranty terms and conditions specific to your region.
2. Customer Support
For further assistance, technical support, or to download the latest drivers and software (including Logi Options+), please visit the official Logitech support website:
You may also find helpful FAQs and community forums on their support portal.





