Introduction
This manual provides detailed instructions for the iClever TM254 2.4G Wireless Vertical Ergonomic Mouse. Please read this manual thoroughly before use to ensure proper operation and to maximize the benefits of its features, including adjustable DPI, silent click buttons, adjustable tilt, and the integrated mouse jiggler function.
Package Contents
- 1 x iClever Vertical Mouse
- 1 x USB Receiver
- 1 x USB-C Charge Cable
- 1 x User Manual
Product Overview
The iClever TM254 mouse is designed for ergonomic comfort and efficient use. Below are its key components and features.

Ergonomic Design
The vertical design of the mouse aims to reduce wrist strain by promoting a more natural handshake grip, differing from traditional horizontal mice.

Adjustable Tilt
The mouse features an adjustable hinge allowing for three tilt angles: -7.5, 0, and 7.5 degrees. This customization helps users find the most comfortable hand position.

DPI Sensitivity
The mouse offers four adjustable DPI levels: 800, 1200, 1600, and 2400, allowing users to customize cursor speed and precision.

Mouse Jiggler Function
An integrated mouse jiggler prevents your computer from entering sleep mode or activating the screensaver, useful during breaks or online meetings.

USB-C Rechargeable Battery
The mouse is equipped with a 500mAh lithium battery, rechargeable via USB-C, offering extended use on a single charge.

Silent Click Buttons
The left and right mouse buttons are designed for silent operation, reducing noise in quiet environments.

Palm Size Recommendation
To ensure optimal comfort, consider the recommended palm sizes for this mouse.

Setup
1. Connecting the USB Receiver
- Locate the USB receiver, typically stored in a compartment on the underside of the mouse.
- Insert the USB receiver into an available USB port on your computer.
- Turn on the mouse using the power switch located on the bottom. The mouse should automatically connect to your computer. No additional drivers are typically required for Windows 8/10/11.
2. Charging the Mouse
- Connect the provided USB-C charge cable to the charging port on the front of the mouse.
- Connect the other end of the cable to a USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light will illuminate during charging and turn off when fully charged. A full charge typically takes approximately 2.5 hours.
Operating Instructions
1. Adjusting DPI Sensitivity
- Press the DPI button, located near the scroll wheel, to cycle through the four sensitivity settings: 800, 1200, 1600, and 2400 DPI.
- Select the DPI setting that best suits your task and preference for cursor speed.
2. Adjusting Tilt Angle
- The mouse base allows for physical adjustment of the tilt angle. Gently adjust the base to one of the three available positions: -7.5, 0, or 7.5 degrees.
- Choose the angle that provides the most comfortable and natural wrist posture for your hand.
3. Using the Mouse Jiggler
- Locate the jiggler switch on the underside of the mouse.
- Toggle the switch to 'ON' to activate the mouse jiggler function. This will simulate mouse movement to keep your computer awake.
- Toggle the switch to 'OFF' to deactivate the jiggler function and resume normal mouse operation.
4. Forward/Backward Buttons
- The mouse includes dedicated forward and backward buttons, typically located on the thumb side. These buttons facilitate navigation in web browsers and file explorers.
Maintenance
- Cleaning: Use a soft, dry cloth to clean the mouse. Avoid using harsh chemicals or abrasive materials.
- Battery Care: To prolong battery life, avoid fully discharging the mouse frequently. Charge it when the low battery indicator appears.
- Storage: When not in use for extended periods, turn off the mouse to conserve battery life. Store in a cool, dry place.
Troubleshooting
- Mouse not responding:
- Ensure the USB receiver is securely plugged into a working USB port.
- Check if the mouse is powered on.
- Verify the mouse battery has sufficient charge. Recharge if necessary.
- Try plugging the USB receiver into a different USB port or a different computer to rule out port issues.
- Cursor movement is erratic or slow:
- Adjust the DPI setting using the DPI button to a higher sensitivity.
- Ensure the mouse is used on a clean, non-reflective surface.
- Clean the optical sensor on the underside of the mouse.
- Mouse Jiggler not working:
- Ensure the jiggler switch on the bottom of the mouse is set to 'ON'.
- Confirm the mouse is powered on and connected to the computer.
- Charging issues:
- Ensure the USB-C cable is properly connected to both the mouse and the power source.
- Try a different USB-C cable or power source.
- Verify the power source is active.
Specifications
| Model Number | TM254 |
| Connectivity Technology | 2.4Ghz USB Wireless |
| DPI Levels | 800 / 1200 / 1600 / 2400 |
| Buttons | 7 (Left, Right, Scroll Wheel, DPI, Forward, Backward, Jiggler Switch) |
| Tilt Angles | -7.5°, 0°, 7.5° |
| Battery Type | Built-in 500mAh Lithium Battery |
| Charging Port | USB-C |
| Product Dimensions | 3.31 x 3.46 x 5.28 inches |
| Item Weight | 4.6 ounces |
| Compatibility | Windows 8/10/11, PC, Laptop, Desktop, Computer |
Warranty and Support
The iClever TM254 Ergonomic Mouse comes with a 12-month warranty. For any product-related inquiries or support, please contact iClever customer service. Our support team is available to assist you.
For further assistance, please refer to the contact information provided with your purchase or visit the official iClever website.





