Introduction
This manual provides comprehensive instructions for the setup, operation, and maintenance of your memzuoix WM125B Wireless Mouse. Designed for comfort and precision, this 2.4GHz wireless mouse offers adjustable DPI settings and broad compatibility for various computing needs.
Key Features:
- 3 Adjustable DPI Levels: Easily switch between 800, 1200, and 1600 DPI for optimal control.
- Ergonomic & Ambidextrous Design: Contoured shape with rubberized side grips for comfortable use by both left and right-handed users.
- Plug & Play 2.4GHz Nano Receiver: Instant connectivity without software installation, offering a reliable 33ft range.
- Durable Build: Buttons and scroll wheel tested for 10 million clicks, ensuring long-term reliability.
- Universal Compatibility: Works seamlessly with Windows, macOS, Linux, and ChromeOS devices.
- Portable Design: Lightweight and compact, ideal for travel and on-the-go use.
Setup Guide
1. Install Batteries
- Locate the battery compartment cover on the underside of the mouse.
- Gently slide or lift the cover to open the compartment.
- Insert two AAA batteries, ensuring correct polarity (+/-).
- Replace the battery compartment cover until it clicks securely into place.

2. Connect USB Receiver
- Locate the nano USB receiver, typically stored within the battery compartment of the mouse.
- Plug the USB receiver into an available USB port on your computer (PC, Mac, laptop, etc.).
- The computer should automatically detect and install the necessary drivers. No additional software installation is required.

Operating Instructions
1. Power On/Off
Locate the ON/OFF switch on the underside of the mouse. Slide the switch to the 'ON' position to activate the mouse. Slide it to 'OFF' when not in use to conserve battery life.
2. Button Functions
- Left Button: Primary click function.
- Right Button: Secondary click function (context menu).
- Scroll Wheel: Scroll up/down documents and web pages. Can also be clicked for middle-button functionality.
- DPI Button: Cycles through DPI settings (800/1200/1600).
- Forward Button: Navigates forward in web browsers or file explorers.
- Backward Button: Navigates backward in web browsers or file explorers.

3. Adjusting DPI Sensitivity
Press the DPI button located below the scroll wheel to cycle through the available sensitivity settings: 800 DPI (for precise control), 1200 DPI (standard use), and 1600 DPI (for faster cursor movement). The mouse will indicate the change, often with a brief LED flash.

Maintenance
1. Cleaning
To maintain optimal performance, regularly clean your mouse. Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution. Avoid harsh chemicals or abrasive materials. Ensure no liquid enters the mouse's internal components.
2. Battery Replacement
When the mouse's performance degrades or it stops responding, it may be time to replace the batteries. Follow the steps in the 'Install Batteries' section of this manual to replace the two AAA batteries. Dispose of old batteries responsibly according to local regulations.
Troubleshooting
- Mouse not responding:
- Ensure the mouse is switched 'ON' using the power switch on the underside.
- Check if the batteries are correctly installed and have sufficient charge. Replace if necessary.
- Verify that the USB receiver is securely plugged into a working USB port on your computer. Try a different USB port.
- Restart your computer.
- Cursor movement is erratic or inaccurate:
- Ensure the mouse is used on a clean, non-reflective surface. Avoid glass or highly reflective surfaces.
- Clean the optical sensor on the underside of the mouse with a soft cloth.
- Try adjusting the DPI setting using the DPI button.
- Connection issues or frequent disconnections:
- Ensure the mouse is within the effective operating range (approximately 33 feet) of the USB receiver.
- Avoid using the mouse near strong electromagnetic interference sources (e.g., other wireless devices, large metal objects).
- Re-pair the mouse with the receiver if possible (refer to manufacturer's website for specific pairing instructions if needed, as this model is typically plug-and-play).
Specifications
| Feature | Detail |
|---|---|
| Brand | memzuoix |
| Model Number | WM125B |
| Connectivity Technology | 2.4GHz Wireless (USB Nano Receiver) |
| DPI Levels | 800 / 1200 / 1600 |
| Number of Buttons | 6 (Left, Right, Scroll Wheel, DPI, Forward, Backward) |
| Movement Detection Technology | Optical |
| Power Source | 2 x AAA Batteries (Not Included) |
| Item Weight | 3.2 ounces |
| Package Dimensions | 4.8 x 3.23 x 1.85 inches |
| Color | Red |
| Compatibility | PC, Mac, Laptop (Windows, macOS, Linux, ChromeOS) |
Warranty and Support
The memzuoix WM125B Wireless Mouse comes with a standard manufacturer's warranty. For specific warranty details, return policies, or technical support, please refer to the product packaging or contact memzuoix customer service directly through their official website or the retailer where the product was purchased.
For further assistance, please visit the memzuoix Store on Amazon.
