Introduction
The XUNFOX K81 is an 81-key wired mechanical feel keyboard designed for gaming, office, and general-purpose use across various platforms. It features a minimalist layout, mixed-color lighting effects, and supports multiple language layouts including English, Arabic, Korean, Russian, Spanish, and Thai. This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your K81 keyboard.
Setup Instructions
- Unpacking: Carefully remove the keyboard from its packaging. Ensure all components are present.
- Connection: Connect the USB cable from the keyboard to an available USB port on your computer (Laptop, Desktop, etc.). The keyboard is plug-and-play and does not require additional drivers for basic functionality.
- System Compatibility: The keyboard is compatible with Windows XP/Vista/Mac OS/Win7/8/10/11 and newer operating systems.
- Adjusting Keyboard Angle: For ergonomic comfort, you can adjust the keyboard's tilt using the adjustable brackets on the underside. Flip out the feet to achieve a 15-degree angle. Ensure the anti-slip foot pads are securely placed to prevent movement during use.

Operating Instructions
Key Features
- 81-Key Minimalist Layout: Designed to save desktop space while retaining essential keyboard functions.
- Mechanical Feel: Provides a tactile typing experience.
- MDA Height Ball Cap Keycaps: Large rounded corner design for comfortable and efficient typing, reducing fatigue.
- 26-Key Rollover: Supports 26-key simultaneous strike without impact, ensuring all key presses are registered during intense gaming or fast typing.


Lighting Controls
The K81 keyboard features mixed-color lighting effects. Use the following FN key combinations to control the lighting:
- FN +
: Turn On/Off the lights. - FN +
: Turn On/Off breathing modes. - FN +
/
: Adjust light brightness (increase/decrease). - FN +
/
: Adjust light speed (increase/decrease).

Multimedia Functions
The keyboard includes dedicated multimedia functions accessible via the FN key combinations:
| Key Combination | Function |
|---|---|
| FN+F1 | Open Player |
| FN+F2 | Volume Down |
| FN+F3 | Volume Up |
| FN+F4 | Mute |
| FN+F5 | Stop Player |
| FN+F6 | Previous Track |
| FN+F7 | Play/Pause |
| FN+F8 | Next Track |
| FN+F9 | Open E-mail |
| FN+F10 | Open Home Page |
| FN+F11 | Lock Windows Key |
| FN+F12 | Open Calculator |

Volume Adjustment Knob
The K81 features an independent volume adjustment knob for convenient and fast audio control:
- Turn Clockwise: Increase Volume (Vol+).
- Turn Anticlockwise: Decrease Volume (Vol-).
- Press Down Once/Twice: Mute/Unmute audio.

Maintenance
- Cleaning: Use a soft, dry cloth to wipe the keyboard surface. For deeper cleaning, you may use a can of compressed air to remove dust and debris from between the keycaps. For keycap cleaning, gently remove them (if removable) and clean with a mild soap solution, then dry thoroughly before reattaching.
- Avoid Liquids: Do not spill liquids on the keyboard. If a spill occurs, immediately disconnect the keyboard from your computer and allow it to dry completely before reconnecting.
- Storage: Store the keyboard in a cool, dry place away from direct sunlight and extreme temperatures.
- Cable Care: Avoid bending or twisting the USB cable excessively to prevent damage.
Troubleshooting
- Keyboard Not Responding:
- Ensure the USB cable is securely connected to both the keyboard and the computer.
- Try connecting the keyboard to a different USB port on your computer.
- Test the keyboard on another computer to rule out a computer-specific issue.
- Lights Not Working:
- Press FN +
to ensure the lights are turned on. - Adjust brightness using FN + Up/Down arrow keys.
- Press FN +
- Keys Not Registering or Double-Typing:
- Clean the affected key(s) to remove any debris that might be interfering with the switch.
- Ensure the keyboard is on a stable, flat surface.
- Multimedia Keys Not Functioning:
- Ensure you are pressing the FN key simultaneously with the desired F-key.
- Check your operating system's settings for media key conflicts or disabled functions.
Specifications
| Feature | Detail |
|---|---|
| Keyboard Type | 81 keys gaming keyboard |
| Connection Mode | USB Wired |
| Number of Buttons | 81 |
| Keycap Material | ABS Plastic |
| Luminescent Type | Rainbow LED Light |
| Weight | 521 ± 20g |
| Keyboard Size | 335mm x 140mm x 39mm |
| Key Life | 10 Million Presses |
| Color Options | Lakes Blue, Shimmer, Violet |
| System Support | Windows XP/Vista/Mac OS/Win7/8/10/11... |
| Switches Hot Swap | No |
| Full Size Keyboard | No |



User Tips
- Customizing Lighting: Experiment with the FN key combinations for lighting to find your preferred brightness and speed settings.
- Ergonomic Use: Utilize the adjustable feet to find a comfortable typing angle that reduces wrist strain during long sessions.
- Keycap Cleaning: For best appearance and hygiene, periodically remove keycaps and clean them with a soft brush or damp cloth. Ensure they are completely dry before reattaching.
Warranty and Support
For warranty information and technical support, please refer to the seller's official store page or contact their customer service directly. Keep your purchase receipt as proof of purchase.





