Introduction
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your KYSONA EM9 Ergonomic Wireless Rechargeable Mouse. Please read this manual thoroughly before using the device to ensure optimal performance and longevity.
Package Contents
Verify that all items are present in the package:
- KYSONA EM9 Ergonomic Wireless Rechargeable Mouse
- 2.4G USB Receiver
- USB Charging Cable
- User Manual (this document)
Product Overview
The KYSONA EM9 mouse features a 57° ergonomic vertical design to promote a natural hand and wrist posture, reducing strain during extended use. It supports dual-mode connectivity (Bluetooth and 2.4G wireless) and offers adjustable DPI settings for various tasks.

Image: The KYSONA EM9 mouse showcasing its 57° ergonomic vertical design, which helps to relax the wrist and forearm.

Image: A diagram illustrating hand size recommendations for the EM9 mouse. It is suitable for small to medium hands (under 7.48 inches).
Setup
1. Charging the Mouse
Before first use, fully charge the mouse. Connect the provided USB charging cable to the mouse's charging port and to a USB power source (e.g., computer USB port, USB wall adapter). The LED indicator will show charging status.

Image: The KYSONA EM9 mouse connected to a charging cable, indicating its rechargeable feature.
2. Power On/Off
Locate the power switch on the bottom of the mouse. Slide it to the "ON" position to power on the device. Slide it to "OFF" to conserve battery when not in use.
3. Connectivity Modes
The KYSONA EM9 mouse supports two wireless connection modes: 2.4G wireless via USB receiver and Bluetooth (BT3.0/BT5.0). You can connect to up to three devices simultaneously (one 2.4G, two Bluetooth).

Image: The KYSONA EM9 mouse demonstrating its dual-mode connectivity, supporting both 2.4G wireless with a USB dongle and Bluetooth 3.0/5.0.
2.4G Wireless Connection:
- Insert the 2.4G USB receiver into an available USB port on your computer.
- Turn on the mouse.
- Press the mode switch button (usually on the bottom or top of the mouse) until the indicator light shows the 2.4G mode (often a specific color like green). The mouse should connect automatically.
Bluetooth Connection (BT3.0/BT5.0):
- Turn on the mouse.
- Press the mode switch button to select a Bluetooth channel (e.g., BT1 or BT2). The indicator light will flash, indicating pairing mode.
- On your device (computer, tablet, smartphone), open Bluetooth settings and search for new devices.
- Select "KYSONA EM9" (or similar name) from the list of available devices to pair.
- Once paired, the indicator light will stop flashing and remain solid.
Operating Instructions
1. Basic Functions
- Left Click: Standard selection and activation.
- Right Click: Opens context menus.
- Scroll Wheel: Scrolls content vertically. Can also be clicked for middle-click functionality.
- Forward/Backward Buttons: Located near the thumb rest, these buttons navigate forward and backward in web browsers or file explorers.
2. DPI Adjustment
The mouse features 5 adjustable DPI settings: 800, 1200, 1600, 2400, and 4000. Press the DPI button (usually located on the top of the mouse, behind the scroll wheel) to cycle through these settings. Each press changes the cursor speed, indicated by a brief flash of the LED.

Image: An overhead view of the KYSONA EM9 mouse highlighting its 5 adjustable DPI settings (800, 1200, 1600, 2400, 4000).
3. RGB Lighting Control
To turn off the RGB lighting, simultaneously press the Forward key and the Backward key. Repeat the action to turn the lighting back on.

Image: The KYSONA EM9 mouse displaying its RGB lighting feature.
4. Silent Click Feature
The KYSONA EM9 mouse is equipped with silent switches, reducing click noise by approximately 95% compared to standard mice. This feature ensures a quiet working environment.

Image: The KYSONA EM9 mouse with a visual representation of its silent click functionality, ideal for quiet environments.
5. Smart Auto-Sleep Mode
To conserve battery life, the mouse automatically enters sleep mode after a period of inactivity. To wake the mouse, simply move it or press any button. The mouse has three sleep modes with different wake-up methods (modes 1 and 2 require just mouse movement, mode 3 requires a button press).
Maintenance
1. Cleaning
To clean the mouse, use a soft, dry, lint-free cloth. For stubborn dirt, slightly dampen the cloth with water or a mild cleaning solution. Avoid using harsh chemicals, abrasives, or excessive moisture, as these can damage the device.
2. Battery Care
The mouse is equipped with a rechargeable lithium battery. For optimal battery life, avoid fully discharging the battery frequently. Recharge the mouse when the low battery indicator appears. Store the mouse in a cool, dry place when not in use for extended periods.
Troubleshooting
Mouse Not Responding:
- Ensure the mouse is powered on.
- Check the battery level and charge the mouse if necessary.
- For 2.4G connection: Ensure the USB receiver is securely plugged into a working USB port. Try a different USB port.
- For Bluetooth connection: Ensure Bluetooth is enabled on your device and the mouse is correctly paired. Try re-pairing the mouse.
- Switch between connection modes to see if the issue is specific to one mode.
- Restart your computer or device.
RGB Lighting Not Working:
- Ensure the RGB lighting has not been turned off. Press the Forward key + Backward key simultaneously to toggle it.
- Check battery level; low battery might affect lighting.
DPI Not Changing:
- Ensure you are pressing the correct DPI button.
- Observe the LED indicator for a brief flash when pressing the DPI button to confirm a change.
Charging Issues:
- Ensure the USB charging cable is fully inserted into both the mouse and the power source.
- Try a different USB charging cable or power source.
- Verify the power source is active and providing power.
Specifications
| Feature | Detail |
|---|---|
| Brand | KYSONA |
| Model Name | EM9 |
| Connectivity Technology | Bluetooth (BT3.0/BT5.0), 2.4G Wireless |
| Movement Detection Technology | Optical |
| DPI Settings | 800, 1200, 1600, 2400, 4000 |
| Button Quantity | 5 (Left, Right, Scroll, Forward, Backward) |
| Hand Orientation | Right |
| Special Features | Ergonomic Design, Rechargeable, Silent Click, RGB Lighting |
| Compatible Devices | Personal Computer, Smartphone, Tablet, Windows, macOS, iPadOS, Laptop, PC |
| Battery Type | 1 Lithium Polymer battery (included) |
| Battery Average Life | Up to 12 months (varies with usage) |
| Wireless Range | 10.0 meters |
| Item Weight | 0.15 Kilograms |
| Item Dimensions (L x W) | 4.25"L x 2.91"W (10.7 x 7.4 CM) |
Warranty Information
The product comes with a limited warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included in your product packaging or contact KYSONA customer support directly. Keep your proof of purchase for warranty claims.
Customer Support
If you encounter any issues or have questions not covered in this manual, please contact KYSONA customer support. Refer to the product packaging or the official KYSONA website for contact information.
Product Video
Video: An official product video demonstrating the ergonomic design and features of the KYSONA EM9 vertical mouse.