LANGTU 18598956
LANGTU Computer Keyboard Instruction Manual
Model: 18598956
Brand: LANGTU
Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your LANGTU Computer Keyboard. Designed for both office and gaming use, this backlit LED keyboard features an all-metal panel, USB wired connectivity, 25-key anti-ghosting, and 104 keys for comprehensive functionality.
Key Features
- Ultra Durable Metal Panel: Constructed with aluminum alloy and ABS thermoplastic for enhanced durability and longevity. Features a water-resistant design to protect against accidental spills.
- Mechanical Feeling: A membrane keyboard engineered to provide a tactile mechanical typing experience with precise keystrokes. Double-colored injection keycaps ensure clear, uniform backlighting and prevent letter fading.
- Bright Backlight: Integrated LED backlighting illuminates each key for visibility in low-light conditions. Backlight brightness and "Breathing" effect speed are adjustable, and the backlight can be switched off.
- Ergonomic Design: Optimized layout for comfortable long-term use, reducing hand fatigue during extended work or gaming sessions.
- Advanced Performance: Equipped with 25-key anti-ghosting technology for accurate multi-key presses, crucial for gaming. Includes 12 multimedia key combinations for efficient control of various functions.
- Broad Compatibility: Supports a wide range of operating systems including Windows 2000, 10, 8, 7, XP, VISTA, MAC, and Linux. Compatible with both laptops and desktop PCs.
Setup
The LANGTU Computer Keyboard is designed for simple plug-and-play operation, requiring no additional driver installation.
- Unpack the keyboard from its packaging.
- Locate an available USB-A port on your computer (laptop or desktop).
- Insert the USB connector of the keyboard cable into the USB-A port.
- The keyboard will be automatically recognized by your operating system and ready for use.

Figure 1: Keyboard components including the USB cable for connection.
Operating Instructions
Backlight Control
- Turn On/Off Backlight: Press the Fn key + the Light Bulb key (usually located near the right Ctrl key) to toggle the backlight on or off.
- Adjust Brightness: Use the Fn key + Page Up or Page Down keys to increase or decrease backlight brightness.
- Adjust "Breathing" Effect Speed: If the "Breathing" effect is active, use the Fn key + + or - keys (on the numeric keypad) to adjust its speed.

Figure 2: Backlight control and anti-ghosting feature illustration.
Multimedia Keys
The keyboard features 12 multimedia key combinations for quick access to various functions. These are typically accessed by holding the Fn key and pressing the corresponding F-key (F1-F12).
| Key Combination | Function |
|---|---|
| Fn + F1 | Media Player |
| Fn + F2 | Volume Down |
| Fn + F3 | Volume Up |
| Fn + F4 | Mute |
| Fn + F5 | Stop |
| Fn + F6 | Previous Track |
| Fn + F7 | Play/Pause |
| Fn + F8 | Next Track |
| Fn + F9 | |
| Fn + F10 | Web Browser |
| Fn + F11 | My Computer |
| Fn + F12 | Calculator |
Maintenance
Cleaning the Keyboard
To ensure optimal performance and longevity, regular cleaning of your keyboard is recommended.
- Disconnect the keyboard from your computer before cleaning.
- Use a soft, lint-free cloth dampened with a small amount of water or a mild cleaning solution to wipe down the keycaps and the metal panel. Avoid excessive moisture.
- For dust and debris between keys, use a small brush (a cleaning brush may be included with your keyboard) or compressed air.
- Ensure the keyboard is completely dry before reconnecting it to your computer.

Figure 3: The keyboard features a water-resistant design for added durability.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Keyboard not responding | Loose USB connection, faulty USB port, driver issue. | Ensure the USB cable is securely plugged into the computer. Try a different USB port. Restart your computer. Check Device Manager for driver issues. |
| Backlight not working | Backlight turned off, brightness set to minimum. | Press Fn + Light Bulb key to toggle backlight. Increase brightness using Fn + Page Up. |
| Keys not registering or ghosting | Software conflict, physical obstruction, excessive simultaneous key presses. | Ensure no software is interfering. Clean around the affected keys. The keyboard supports 25-key anti-ghosting, but extreme multi-key presses might exceed this. |
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 17.7 x 5 x 1.2 inches |
| Item Weight | 1 pounds |
| Manufacturer | LANGTU |
| ASIN | B08GX8D2NN |
| Country of Origin | China |
| Item Model Number | 18598956 |
| Compatible Devices | Laptop, PC |
| Connectivity Technology | USB, USB-A |
| Keyboard Description | Gaming |
| Recommended Uses | Office |
| Special Features | Lighting, Water Resistant |
| Color | Pink |
| Number of Keys | 104 (full-size, including 25 anti-ghosting keys) |
| Backlighting Color | Single Color (Pink LED) |

Figure 4: Keyboard dimensions for proper fit and placement.
Warranty and Support
Your LANGTU keyboard is covered by a 30-day full money refund policy and a 12-month quality guarantee from the date of purchase.
Should you encounter any problems or have questions regarding your product, please do not hesitate to contact LANGTU customer support. We are committed to providing assistance within 12 hours.
For support, please refer to the contact information provided on the product packaging or the official LANGTU website.
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