Introduction
Thank you for choosing the FMOUSE Rechargeable Wireless Mouse. This device offers dual-mode connectivity (2.4G Wireless and Bluetooth 5.1), adjustable DPI settings, RGB lighting, and a built-in rechargeable battery. This manual will guide you through its features and operation to ensure optimal performance.
Package Contents
- FMOUSE Rechargeable Wireless Mouse
- USB Receiver (2.4G)
- USB-C Charging Cable
- User Manual

Image: Package contents including the FMOUSE M303 mouse, USB charging cable, USB receiver, and instruction manual.
Product Overview

Image: Diagram illustrating the mouse dimensions and key components: 1. USB-C Charging Port, 2. Aluminum Scroll Wheel, 3. DPI/Volume Setup Button, 4. LED Mode Switch, 5. USB Receiver storage.
- USB-C Charging Port: For recharging the internal battery.
- Aluminum Scroll Wheel: For vertical scrolling.
- DPI/Volume Setup Button: Short press to cycle DPI, long press for volume adjustment.
- LED Mode Switch: Button to change RGB lighting modes.
- USB Receiver Storage: Compartment for the 2.4G USB receiver.
Setup and Connection
1. Charging the Mouse
Before first use, it is recommended to fully charge the mouse. Connect the provided USB-C charging cable to the mouse's USB-C port and the other end to a USB power source (e.g., computer, wall adapter).
- Light flash: Indicates low battery warning.
- Light on: Indicates the mouse is currently charging.
- Light off: Indicates charging is complete.

Image: The FMOUSE mouse being charged via its USB-C port, with indicators for charging status.
2. Connecting via 2.4G Wireless
- Locate the USB receiver stored in the bottom compartment of the mouse.
- Plug the USB 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 automatically connect to your computer.

Image: The FMOUSE mouse connected to a laptop using the 2.4G USB receiver, highlighting the wireless connection.
3. Connecting via Bluetooth 5.1
- Slide the switch on the bottom of the mouse to the "Bluetooth" position.
- On your computer or device, open Bluetooth settings.
- Search for new devices and select "FMOUSE" (or similar name) from the list.
- Confirm pairing. The mouse should now be connected.

Image: The FMOUSE mouse connected to a tablet via Bluetooth, demonstrating the Bluetooth 5.1 connectivity.
Operating Instructions
1. DPI Adjustment
The mouse features 4 adjustable DPI levels: 800, 1200, 1600, and 2400 DPI. To change the DPI, short press the DPI button located behind the scroll wheel. Each press will cycle through the available DPI settings.
- 800 DPI: Suitable for precise tasks like image processing.
- 1200 DPI: Ideal for general study and browsing.
- 1600 DPI: Recommended for daily work.
- 2400 DPI: Best for gaming or fast cursor movement.

Image: Visual representation of the four adjustable DPI levels and their recommended uses.
2. RGB Lighting Control
The mouse features RGB lighting with 7 backlight modes. To change the LED mode, press the "LED MODE" button (refer to Product Overview for location). To turn the LED light on or off, long press the "LED MODE" button for 3 seconds.

Image: The FMOUSE mouse displaying its 7-color RGB lighting effect.
3. Volume Adjustment
To adjust the system volume, long press the DPI button for 2 seconds. While holding, roll the scroll wheel up or down to increase or decrease the volume respectively.

Image: A hand demonstrating how to adjust volume by long-pressing the DPI button and scrolling the wheel.
4. Smart Sleep Mode
The mouse will enter sleep mode after 15 seconds of no use to conserve battery. To reactivate the mouse, simply click any button.
Maintenance
- Keep the mouse clean by wiping it with a soft, dry cloth.
- Avoid exposing the mouse to extreme temperatures, direct sunlight, or liquids.
- Store the USB receiver in its designated compartment when not in use to prevent loss.
- Recharge the mouse regularly to maintain battery health.
Troubleshooting
- Mouse not responding:
- Ensure the mouse is charged. Connect the USB-C cable to charge.
- Check the power switch on the bottom of the mouse is in the correct position (2.4G or Bluetooth).
- For 2.4G connection, ensure the USB receiver is securely plugged into your computer. Try a different USB port.
- For Bluetooth connection, ensure Bluetooth is enabled on your device and the mouse is paired correctly. Try re-pairing.
- Cursor movement is erratic or slow:
- Clean the optical sensor on the bottom of the mouse.
- Ensure you are using the mouse on a suitable surface. Reflective or uneven surfaces can affect tracking.
- Adjust the DPI setting to a higher level if movement feels too slow.
- RGB lights are off:
- Long press the LED MODE button for 3 seconds to turn the lights on.
- Ensure the mouse has sufficient battery charge.
Specifications
| Brand | FMOUSE |
| Model Number | AUB09C4PNR9V |
| Connectivity Technology | 2.4G Wireless, Bluetooth 5.1, USB (for charging) |
| Movement Detection Technology | Optical |
| DPI Levels | 800, 1200, 1600, 2400 |
| Battery Capacity | 700mAh (Rechargeable) |
| Charging Port | USB-C |
| Special Features | RGB Lights (7 modes), Ergonomic Design, Dual Mode |
| Product Dimensions | 3.94 x 2.56 x 0.04 inches (100mm x 65mm x 34mm) |
| Item Weight | 5 ounces (72g) |
Warranty and Support
FMOUSE products are designed for reliability and performance. For warranty information or technical support, please refer to the contact details provided on the product packaging or visit the official FMOUSE website. Please retain your proof of purchase for warranty claims.


