Introduction
The Logitech M331 Silent Plus Wireless Mouse is designed to provide a quiet, comfortable, and efficient computing experience. Featuring Logitech's SilentTouch Technology, it significantly reduces clicking sounds, making it ideal for quiet environments. Its contoured design ensures comfort for right-handed users, while advanced optical tracking delivers precise cursor control. This manual provides comprehensive instructions for setting up, operating, maintaining, and troubleshooting your M331 mouse.

Image: Top view of the Logitech M331 Silent Plus Wireless Mouse in blue.
Setup
Follow these steps to set up your Logitech M331 Silent Plus Wireless Mouse:
- Install Battery: The mouse comes with one AA battery pre-installed. If not, open the battery compartment on the underside of the mouse and insert one AA alkaline battery, ensuring correct polarity.
The mouse is powered by a single AA battery, which is typically included and pre-installed. Ensure the battery is correctly oriented within its compartment.
- Locate USB Nano Receiver: The USB nano receiver is typically stored inside the battery compartment of the mouse for safe keeping during transport. Carefully remove it.
The compact USB receiver is stored within the mouse itself, designed for easy retrieval and portability.
- Connect Receiver: Plug the USB nano receiver into an available USB port on your computer (PC, Mac, Chromebook, or Linux system).
Insert the small USB receiver into any standard USB port on your computer. This establishes the wireless connection for the mouse.
- Power On: Ensure the mouse is powered on. There is usually an On/Off switch on the underside of the mouse.
Activate the mouse by sliding the power switch, usually located on its base, to the 'On' position.
- Automatic Connection: The mouse should automatically connect to your computer. No additional software or drivers are typically required for basic functionality.
Upon connecting the receiver and powering on the mouse, the device will automatically establish a connection with your computer, ready for immediate use.

Image: Diagram highlighting key features of the Logitech M331 mouse, including silent clicks, wide rubber wheel, contoured grips, high precision tracking, unifying receiver storage, and 10m wireless range.
Operating Instructions
The Logitech M331 Silent Plus Wireless Mouse offers intuitive operation with its core features:
- Silent Clicks: Benefit from Logitech's SilentTouch Technology, which reduces over 90% of clicking sounds. You will feel the click, but hear virtually nothing, allowing for a quieter work environment.

Image: The Logitech M331 mouse with text indicating 90% noise reduction, emphasizing its quiet operation.
- Precise Optical Tracking: The mouse features 1000 DPI optical tracking, providing smooth and accurate cursor control on most surfaces. This ensures high-performance precision for your daily tasks.

Image: A hand operating the Logitech M331 mouse, demonstrating smooth navigation and precise scrolling capabilities.
- Comfortable Design: The contoured shape with soft rubber grips is specifically designed for right-handed users, ensuring comfort even during extended periods of use.

Image: A hand comfortably gripping the Logitech M331 mouse, highlighting its ergonomic design crafted for right-handed use with contoured side grips.
- Automatic Sleep Mode: To conserve battery life, the mouse automatically switches to sleep mode when not in use. Simply move the mouse or click a button to wake it up.
- Wireless Range: The 2.4GHz wireless connection provides a reliable range of up to 33 feet (10 meters), allowing flexibility in your workspace.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your Logitech M331 mouse:
- Battery Replacement: The mouse boasts an 18-month battery life (may vary based on usage). When the cursor movement becomes erratic or stops responding, it's time to replace the AA battery.

Image: The Logitech M331 mouse, illustrating its quality and durability, specifically highlighting its 18-month battery life.
- Cleaning: Use a soft, lint-free cloth to clean the mouse. For stubborn dirt, slightly dampen the cloth with water. Avoid using harsh chemicals or abrasive cleaners.
- Receiver Storage: When traveling or not using the mouse for an extended period, store the USB nano receiver inside the mouse's battery compartment to prevent loss.
Troubleshooting
If you encounter issues with your Logitech M331 mouse, try the following solutions:
- No Cursor Movement:
- Ensure the mouse is powered on.
- Check the battery level and replace if necessary.
- Ensure the USB nano receiver is securely plugged into a working USB port. Try a different USB port.
- Move the mouse closer to the receiver to rule out range issues.
- Erratic Cursor Movement:
- Clean the optical sensor on the underside of the mouse.
- Ensure you are using the mouse on a suitable surface. Highly reflective or transparent surfaces may affect tracking.
- Check battery level.
- Buttons Not Responding:
- Check battery level.
- Ensure the mouse is connected to the receiver.
- Restart your computer.
- Connection Issues:
- Unplug the USB nano receiver and plug it back in.
- Try plugging the receiver into a different USB port.
- If you have other wireless devices, ensure they are not causing interference.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 910-004915 |
| Connectivity Technology | 2.4GHz Wireless (USB Nano Receiver) |
| Movement Detection Technology | Optical (1000 DPI) |
| Buttons | 3 (Left, Right, Scroll Wheel Click) |
| Battery Type | 1 x AA Alkaline Battery (included) |
| Battery Life | Up to 18 months (may vary based on usage) |
| Wireless Range | Up to 33 ft (10 meters) |
| Product Dimensions (LxWxH) | 10.54 cm x 6.79 cm x 3.84 cm (4.14 in x 2.67 in x 1.51 in) |
| Item Weight | 91 g (2.75 oz) |
| Color | Blue |
| Material | Rubber (Grips) |
| Compatible Operating Systems | Windows, macOS, Chrome OS, Linux |
| Included Components | Mouse, Nano receiver, 1 AA battery (pre-installed), User documentation |
| Country of Origin | China |
| Manufacturer | Logitech |

Image: Diagram showing the dimensions of the Logitech M331 Silent Plus Wireless Mouse in both inches and millimeters, along with its weight.
Warranty and Support
Logitech products are manufactured to the highest quality standards. For warranty information and technical support, please refer to the official Logitech website or the documentation included with your product.
- Online Support: Visit the official Logitech support website for FAQs, troubleshooting guides, and driver downloads.
For comprehensive support resources, including frequently asked questions and detailed troubleshooting, please visit support.logi.com.
- Warranty Information: Details regarding the limited hardware warranty for your Logitech M331 mouse can be found on the Logitech website or in the user documentation.
Information about the product's warranty coverage is available on the official Logitech support portal.





