1. Introduction
Thank you for choosing the CITLLA PRO MAX E510 Wireless Bluetooth Mouse. This ergonomic, multi-device mouse is designed for comfort and efficiency across various operating systems and devices. This manual provides essential information for setup, operation, and maintenance to ensure optimal performance.
2. Package Contents
- CITLLA PRO MAX E510 Wireless Bluetooth Mouse
- User Manual
- USB-C Charging Cable
- 2.4G USB Receiver (typically stored in the mouse's battery compartment)
3. Product Overview
Familiarize yourself with the components of your CITLLA PRO MAX E510 mouse:

Image: Labeled diagram of the CITLLA PRO MAX E510 Wireless Bluetooth Mouse.
- Left Button: Standard left-click function.
- Right Button: Standard right-click function.
- Smart Flying Scroll Wheel: For ultra-fast, nearly silent vertical scrolling.
- DPI Button: Adjusts cursor sensitivity (DPI).
- Side Wheel: For fast horizontal scrolling.
- Devices Switch Button: Toggles between connected devices (2.4G, Bluetooth 1, Bluetooth 2).
- Devices Indicators: Lights indicating current connection mode (2.4G White, Bluetooth 1 Blue, Bluetooth 2 Green) and low power.
- Forward/Back Buttons: Navigate web pages or folders (Windows). Switch applications (macOS).
- Return to Desktop Button: Minimizes all windows to show desktop (Windows only). Full screen toggle (Control+Command+F) for macOS.
4. Getting Started (Setup)
4.1. Charging the Mouse
The CITLLA PRO MAX E510 mouse is rechargeable via its USB-C port. A full charge can last up to 60 days. The mouse features a smart power-saving mode, entering auto-sleep after 15 minutes of inactivity. Click any button to reactivate.

Image: Mouse connected to a USB-C charging cable.
- Connect the provided USB-C 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 low power indicator light will show charging status.
4.2. Connecting via 2.4G Wireless (USB Receiver)
- Locate the 2.4G USB receiver, typically stored in the mouse's battery compartment.
- Insert the USB receiver into an available USB port on your computer or device.
- Turn on the mouse.
- Press the Devices Switch Button until the white indicator light for 2.4G mode illuminates.
- The mouse should automatically connect.
4.3. Connecting via Bluetooth
The mouse supports two Bluetooth connections (BT1 and BT2).

Image: Multi-device connection setup for the CITLLA PRO MAX E510 mouse.
- Turn on the mouse.
- Press the Devices Switch Button to select either Bluetooth 1 (blue indicator light) or Bluetooth 2 (green indicator light).
- Press and hold the Devices Switch Button for 3-5 seconds until the selected Bluetooth indicator light starts blinking rapidly. This indicates pairing mode.
- On your device (laptop, tablet, smartphone), open Bluetooth settings.
- Search for new devices and select "CITLLA PRO MAX E510" (or similar name) from the list.
- Once paired, the indicator light will stop blinking and remain solid.
4.4. Switching Between Devices
To switch between connected devices (2.4G, Bluetooth 1, Bluetooth 2), simply press the Devices Switch Button. The corresponding indicator light will illuminate to show the active connection.
5. Operating Instructions
5.1. DPI Adjustment
The mouse offers 4 adjustable DPI levels (1000/1600/2400/3200) for precise cursor control. Press the DPI Button (4) to cycle through the settings. Each press will change the sensitivity, allowing you to adapt to different tasks or screen resolutions.

Image: Visual representation of 4-level adjustable DPI settings.
5.2. Smart Flying Scroll Wheel and Side Wheel
The Smart Flying Scroll Wheel (3) provides ultra-fast and quiet vertical scrolling, ideal for navigating long documents or web pages. The Side Wheel (5) enables quick horizontal scrolling, enhancing productivity in applications like spreadsheets.

Image: Detail of the Smart Flying Scroll Wheel and Side Wheel.
5.3. Silent Click
The mouse features a silent click design, minimizing noise during use. This is beneficial for shared workspaces, libraries, or quiet environments.

Image: User demonstrating the quiet click feature in an office environment.
5.4. Return to Desktop Button (Windows Only)
The dedicated Return to Desktop Button (9) instantly minimizes all open windows on Windows systems, providing quick access to your desktop. For macOS, this button functions as a full-screen toggle (Control+Command+F).

Image: Illustration of the 'Return to Desktop' function.
5.5. Forward/Back Buttons
Use the Forward/Back Buttons (8) for convenient navigation in web browsers or file explorers on Windows. On macOS, these buttons can be used to switch between applications.
6. Compatibility
The CITLLA PRO MAX E510 mouse is widely compatible with various operating systems:

Image: Icons illustrating wide compatibility with various operating systems.
- Windows
- Mac OS
- Chrome OS
- Linux
- iOS (limited functionality depending on device)
- Android (limited functionality depending on device)
7. Maintenance
7.1. Charging
Charge the mouse when the low power indicator light illuminates. Use the provided USB-C cable and a standard USB power source. Avoid using damaged cables or chargers.
7.2. Cleaning
To clean the mouse, gently wipe its surface with a soft, dry, or slightly damp cloth. Avoid using harsh chemicals or abrasive materials that could damage the finish. Ensure no liquid enters the mouse's internal components.
7.3. Storage
When not in use for extended periods, store the mouse in a cool, dry place. If storing for a long time, ensure the mouse is partially charged to maintain battery health.
8. Troubleshooting
- Mouse not responding:
- Ensure the mouse is powered on.
- Check battery level and charge if necessary.
- Verify the correct connection mode (2.4G, BT1, BT2) is selected using the Devices Switch Button.
- For 2.4G, ensure the USB receiver is securely plugged into the device.
- For Bluetooth, re-pair the mouse with your device.
- Try connecting to a different USB port or device to rule out port/device issues.
- Cursor movement is erratic or slow:
- Adjust the DPI setting using the DPI Button.
- Ensure the mouse is used on a clean, non-reflective surface.
- Clean the optical sensor on the bottom of the mouse.
- Bluetooth connection drops frequently:
- Ensure the mouse is within the effective range (typically 10 meters) of your device.
- Minimize interference from other wireless devices.
- Re-pair the mouse with your device.
- Update your device's Bluetooth drivers.
- Side buttons or scroll wheel not working:
- Ensure the mouse is fully charged.
- Check if the buttons are configured correctly in your operating system's mouse settings.
- Note that the 'Return to Desktop' function is Windows-specific.
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | PRO MAX E510 |
| Product Dimensions | 4.24 x 2.68 x 0.04 inches |
| Item Weight | 6.7 ounces |
| Connectivity Technology | Bluetooth, 2.4G USB |
| DPI Levels | 1000/1600/2400/3200 (Adjustable) |
| Special Features | 4-Way Scrolling, Ergonomic Design, Rechargeable, Silent Click, Multi-Device Switching, Return to Desktop Button |
| Movement Detection | Optical |
| Power Source | Rechargeable Battery (USB-C) |
| Manufacturer | CITLLA |
10. Safety Information
- Do not expose the mouse to extreme temperatures or humidity.
- Avoid dropping or subjecting the mouse to strong impacts.
- Do not attempt to disassemble or repair the mouse yourself. This may void the warranty and cause damage.
- Keep out of reach of children.
11. Customer Support
For further assistance, troubleshooting, or warranty inquiries, please contact CITLLA customer support through the retailer where you purchased the product or visit the official CITLLA website for contact information.




