1. Introduction
Thank you for choosing the E-YOOSO X-45 Vertical Mouse. This ergonomic gaming mouse is designed to provide comfort and precision for extended use, featuring multiple connection modes, adjustable DPI, and a long-lasting rechargeable battery. This manual will guide you through the setup, operation, and maintenance of your new mouse to ensure optimal performance.

2. Product Overview
The E-YOOSO X-45 Vertical Mouse combines ergonomic design with advanced features for a superior user experience. Key features include:
- Ergonomic Design: Anti-sweat and anti-slip material with a contoured shape for large hands, providing comfortable support for all fingers.
- Multi-Mode Connection: Supports 2.4G Wireless, Bluetooth, and wired (data cable) connections.
- Adjustable DPI: Five levels of DPI (800/1200/1600/2000/4800) for precise control.
- Rechargeable Battery: Built-in 400mAh lithium polymer battery, usable while charging.
- Smart Auto Sleep Mode: Conserves power by entering standby after 3 seconds and hibernation after 10 seconds of inactivity.
- Dedicated Buttons: Includes forward and backward buttons for efficient web browsing.
2.1 Mouse Components

- DPI +/- Button: Adjusts the mouse sensitivity (DPI).
- Forward Button: Navigates forward in web browsers or file explorers.
- Backward Button: Navigates backward in web browsers or file explorers.
- Scroll Wheel: For scrolling and middle-click functionality.
- Right Click Button: Standard right-click function.
- Type-C Port: For charging and wired connection.
- Left Click Button: Standard left-click function.
- LED Light: Indicates DPI level and charging status.

- 2.4G/BT/OFF Switch: Selects connection mode or turns off the mouse.
- Anti-slip Rubber Pads: Provides stability.
- Receiver Compartment: Stores the USB Nano Receiver.
3. Specifications
| Feature | Description |
|---|---|
| Model | X-45 |
| Connection Type | 2.4G Wireless, Bluetooth, Wired (Type-C Data Cable) |
| DPI Levels | 800 / 1200 (default) / 1600 / 2000 / 4800 |
| Polling Rate | 125Hz (default) / 250Hz |
| Battery | Built-in 400mAh Rechargeable Lithium Polymer |
| Transmission Distance | Up to 10 meters (33 feet) |
| Keystroke Life | Over 50,000,000 keystrokes |
| Operation Mode | Opto-electronic |
| Number of Buttons | 5 (excluding DPI switch and scroll wheel click) |
| Hand Orientation | Right |
| Dimensions (L x W x H) | 115mm x 60mm x 86mm |
| Connection Cable Length | 1500mm |
| System Support | Windows 11/10/8.1/8/7/XP/Vista, Linux, Chromebook, Mac OS (Side buttons not available on Mac) |
| Certifications | CE, FCC |
| Gross Weight | 160g |

4. Setup
4.1 Charging the Mouse
The X-45 mouse comes with a built-in 400mAh rechargeable battery. Before first use, or when the battery is low, connect the mouse to a USB power source using the provided Type-C cable.
- During charging, a red LED light will illuminate.
- The red LED light will switch off when the battery is fully charged.
- The mouse can be used normally while charging.

4.2 Connecting the Mouse
The X-45 mouse supports three connection modes: 2.4G Wireless, Bluetooth, and Wired. Use the switch on the bottom of the mouse to select your desired mode.
4.2.1 2.4G Wireless Connection
- Locate the USB Nano Receiver in the compartment on the bottom of the mouse.
- Plug the USB Nano Receiver into an available USB port on your computer.
- Slide the switch on the bottom of the mouse to the '2.4G' position.
- The mouse should be automatically recognized and ready for use.
4.2.2 Bluetooth Connection
- Slide the switch on the bottom of the mouse to the 'BT' (Bluetooth) position.
- On your computer, open Bluetooth settings.
- Search for new devices and select 'E-YOOSO X-45' (or similar) from the list.
- Follow any on-screen prompts to complete the pairing process.
4.2.3 Wired Connection
- Connect the Type-C end of the provided data cable to the mouse's Type-C port.
- Connect the USB-A end of the data cable to an available USB port on your computer.
- Slide the switch on the bottom of the mouse to the 'Data Cable' position (or ensure it's in a mode that allows wired operation, often '2.4G' or 'BT' will also work when wired).
- The mouse will function as a wired mouse and charge simultaneously.
5. Operating Instructions
5.1 DPI Switching
The E-YOOSO X-45 mouse offers 5 adjustable DPI levels to suit different tasks and preferences. Press the DPI +/- button (located near the scroll wheel) to cycle through the settings.

The LED light on the mouse indicates the current DPI setting:
- 800 DPI: Red LED blinks 1 time.
- 1200 DPI: Green LED blinks 2 times (default).
- 1600 DPI: Blue LED blinks 3 times.
- 2000 DPI: Cyan LED blinks 4 times.
- 4800 DPI: Purple LED blinks 5 times.
5.2 Polling Rate Switching
To switch between 125Hz (default) and 250Hz polling rates:
- Press and hold the Right Click button and the Scroll Wheel (middle button) simultaneously for 3 seconds.
- The mouse will switch to the alternate polling rate.
5.3 Smart Auto Sleep Mode
To conserve battery life, the X-45 mouse features an intelligent power-saving mode:
- If the mouse is not used for approximately 3 seconds, it will enter standby mode.
- If the mouse is not used for approximately 10 seconds, it will enter hibernation mode.
- To wake the mouse, simply move it or click any button.

6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the mouse. For stubborn dirt, a slightly damp cloth can be used, ensuring no moisture enters the internal components. Avoid harsh chemicals or abrasive cleaners.
- Battery Care: To prolong battery life, avoid fully discharging the mouse frequently. Recharge when the low battery indicator appears. The mouse can be used while charging, which is convenient for continuous operation.
- Storage: When not in use for extended periods, turn off the mouse using the switch on the bottom. Store the USB Nano Receiver in its dedicated compartment to prevent loss.
7. Troubleshooting
- Mouse not responding:
- Check the battery level and charge the mouse if necessary.
- Ensure the mouse is not in sleep or hibernation mode (move or click to wake).
- Verify the connection mode switch on the bottom of the mouse is set correctly (2.4G, BT, or Data Cable).
- For 2.4G wireless, ensure the USB Nano Receiver is securely plugged into the computer. Try a different USB port.
- For Bluetooth, ensure Bluetooth is enabled on your computer and the mouse is paired correctly. Try re-pairing.
- For wired connection, ensure the Type-C cable is securely connected to both the mouse and the computer.
- Cursor is unstable or jumpy:
- Ensure the mouse is on a clean, non-reflective surface.
- Check the polling rate (try switching between 125Hz and 250Hz).
- Clean the optical sensor on the bottom of the mouse.
- Ensure there are no obstructions between the mouse and the receiver (for wireless modes).
- Side buttons (Forward/Backward) not working on Mac:
- This is a known compatibility limitation. The side buttons are generally not supported on Mac OS.
- Mouse disconnects frequently:
- Ensure the mouse is within the 10-meter transmission range of the receiver/Bluetooth device.
- Minimize interference from other wireless devices.
- Check battery level.
8. User Tips
- Ergonomic Posture: Maintain a relaxed wrist and forearm position. The vertical design of the X-45 mouse is intended to reduce strain, but proper posture is still key.
- DPI Adjustment: Experiment with different DPI settings to find what works best for your tasks. Lower DPI is often preferred for precision work (e.g., graphic design), while higher DPI can be beneficial for gaming or navigating large screens.
- Battery Management: If you primarily use the mouse in wired mode, it will continuously charge, ensuring it's always ready for wireless use when needed.
9. Warranty and Support
For warranty information, technical support, or any inquiries regarding your E-YOOSO X-45 Vertical Mouse, please refer to the seller's contact information or the official E-YOOSO website. Keep your purchase receipt as proof of purchase.





