1. Introduction
Thank you for choosing the MENDUNER LED Programmable Motorcycle Backpack. This manual provides essential information for the proper setup, operation, and maintenance of your new backpack. Please read these instructions carefully before use to ensure optimal performance and longevity of the product.
2. Product Features
- Integrated LED Display: Features a 48x48 color LED screen that supports customizable text, images, and GIFs.
- USB Power Port: Equipped with an integrated USB data port for powering the LED display. An external power bank (not included) is required for operation.
- Ample Storage: Dimensions of approximately 38 x 18 x 45 cm (15 x 7 x 18 inches) provide significant storage capacity, including a large zippered laptop pocket.
- Multiple Compartments: Designed with various compartments for organizing items such as cosmetics, tissues, keys, books, phones, and umbrellas.
- DIY Customization: Connects to the LOY EYES application via Bluetooth for personalizing the LED display with custom text, animations, and images.
- Durable Construction: Made with 3D waterproof material, a 1680 PVC back panel, and a shell constructed from ABS, PC, and 1680 PVC materials for enhanced durability and protection.
- Comfortable Design: Features adjustable and breathable shoulder straps for improved comfort during extended wear.
- Helmet Storage: Expandable design allows for storage of a half-helmet.
3. Package Contents
The MENDUNER LED Programmable Motorcycle Backpack package includes:
- 1 x MENDUNER LED Programmable Motorcycle Backpack
- 1 x User Manual
Note: An external power bank is required for the LED display and is not included in the package.
4. Setup Instructions
- Connect Power Bank: Locate the integrated USB data port inside the backpack. Connect your external power bank (5V/2A recommended) to this port to power the LED display.
- Download the App: Scan the QR code provided in the included manual or search for "LOY EYES" in your smartphone's app store (iOS/Android) to download the control application.
- Pair via Bluetooth: Open the LOY EYES app on your smartphone. Ensure Bluetooth is enabled on your device. The app will guide you through the pairing process to connect with your backpack's LED display.
- Follow On-Screen Instructions: Once connected, follow the instructions within the app to begin customizing your LED display.

5. Operating Instructions
5.1 Customizing the LED Display
The LOY EYES application allows for extensive customization of your backpack's LED display:
- Text Mode: Enter custom text messages. You can adjust font, color, scroll speed, and display effects.
- Animation Mode: Choose from a variety of pre-loaded animations or create your own.
- Image/GIF Mode: Upload custom images or GIFs from your phone's gallery to be displayed on the screen. The 48x48 pixel resolution allows for clear, vibrant visuals.
- Brightness Control: Adjust the brightness of the LED display directly from the app to suit different lighting conditions.


5.2 Storage and Organization
The backpack is designed for efficient storage of various items:
- Main Compartment: Ideal for larger items such as clothing, books, or a laptop up to 15.6 inches.
- Laptop Pocket: A dedicated zippered pocket provides secure storage for your laptop.
- Internal Pockets: Multiple smaller pockets are available for organizing accessories like phones, wallets, keys, and other personal items.
- Helmet Storage: An expandable zipper allows the backpack to increase in depth from approximately 18 cm to 31 cm, accommodating a half-helmet.
- Anti-Theft Back Pocket: A discreet pocket on the back panel offers secure storage for valuables.



6. Maintenance
6.1 Cleaning
- Exterior: Wipe the hard shell and waterproof fabric with a damp cloth and mild soap. Avoid abrasive cleaners or solvents.
- Interior: For internal cleaning, use a soft, damp cloth. Ensure the interior is completely dry before storing items.
- LED Screen: Gently wipe the LED screen with a soft, dry, lint-free cloth. Do not apply pressure or use liquid cleaners directly on the screen.
6.2 General Care
- Avoid exposing the backpack to extreme temperatures or direct sunlight for prolonged periods.
- Ensure all zippers are closed when not in use to maintain the waterproof integrity.
- Store the backpack in a cool, dry place when not in use.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| LED display not turning on | Power bank not connected or discharged. | Ensure the power bank is fully charged and securely connected to the USB port. |
| App cannot connect to backpack | Bluetooth is off on phone; app permissions not granted; backpack not powered. | Verify Bluetooth is enabled on your phone. Check app permissions. Ensure the backpack's LED system is powered by a connected power bank. |
| Display content is incorrect or frozen | Temporary software glitch; poor Bluetooth connection. | Restart the LOY EYES app. Disconnect and reconnect Bluetooth. If issues persist, power cycle the backpack by disconnecting and reconnecting the power bank. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | MENDUNER |
| Model | MENDUNERoq9tyavrh3 |
| Dimensions (L x W x H) | Approx. 36 x 18 x 48 cm (14.2 x 7.1 x 18.9 inches) |
| Expanded Depth | Approx. 31 cm (12.2 inches) |
| Item Weight | 2.48 Kilograms |
| Materials | ABS, PC, 1680 PVC (Waterproof 3D material) |
| LED Screen Resolution | 48 x 48 pixels |
| Power Input | 5V/2A (via external power bank, not included) |
| Connectivity | Bluetooth (via LOY EYES App) |
| Country of Origin | China |

9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact MENDUNER customer service through the retailer where the product was purchased. Please have your model number (MENDUNERoq9tyavrh3) and ASIN (B0D72476ZY) available when contacting support.