1. Introduction
The Eyoyo Wireless Android Barcode Scanner (Model EY-U1) is an all-in-one mobile computing device designed to streamline operations in various business environments. It integrates barcode scanning, data processing, photography, GPS positioning, NFC functionality, and wireless connectivity into a single handheld terminal. This device is suitable for tasks such as warehouse inventory management, logistics, retail, and manufacturing.
Key features include a 5.5-inch full touchscreen display, Android 12 operating system with an octa-core processor, robust 1D and 2D barcode scanning capabilities, and an IP66-rated rugged industrial design for durability in challenging conditions.

Image: A delivery person using the Eyoyo EY-U1 mobile scanner to scan a package, illustrating its all-in-one functionality for various business tasks.
2. Package Contents
Before proceeding, please verify that all items are present in the package:
- Eyoyo EY-U1 Barcode Scanner
- Protective Film (1 sheet)
- 2.4G Dongle
- Charger
- USB Cable
- Lanyard
- User Manual (this document)

Image: The Eyoyo EY-U1 barcode scanner along with its accessories, including a protective film, 2.4G dongle, charger, USB cable, and lanyard.
3. Device Overview
The EY-U1 features a robust design with a 5.5-inch full touchscreen display. It is equipped with a 2.3GHz octa-core processor and runs on Android 12, providing a stable and efficient operating environment.

Image: Close-up view of the Eyoyo EY-U1's 5.5-inch full touchscreen display, highlighting its physical dimensions (156x76x22.6 mm) and resolution (720x1440).

Image: Illustration of the Eyoyo EY-U1's internal components, emphasizing the Android 12 operating system, 2.3GHz Octa-Core CPU, 4GB RAM, and 64GB ROM.
4. Setup
4.1 Charging the Device
Before initial use, fully charge the device. Connect the provided USB cable to the scanner and the charger, then plug the charger into a power outlet. The device features a 4700mAh battery designed for extended operation.
4.2 Powering On/Off
- To power on: Press and hold the power button located on the side of the device until the screen illuminates.
- To power off: Press and hold the power button, then select "Power Off" from the options displayed on the screen.
4.3 Initial Configuration
Upon first startup, follow the on-screen prompts to configure basic settings such as language, Wi-Fi connection, and Google account setup. The device supports dual SIM cards for mobile calling functionality.

Image: A worker in a warehouse environment using the Eyoyo EY-U1 for mobile calling, demonstrating its dual SIM capability.
5. Operating Instructions
5.1 Barcode Scanning
The EY-U1 is capable of scanning both 1D and 2D barcodes. To scan, point the scanner's laser at the barcode. A successful scan will typically be indicated by an audible beep and/or a visual confirmation on the screen.
- Ensure the barcode is within the optimal scanning range.
- Hold the device steady to allow for accurate capture.
- The scanner can read damaged, worn, or screen-displayed codes.

Image: The Eyoyo EY-U1 scanner actively scanning a barcode with its red laser, demonstrating its superior scanning capability for both 1D and 2D codes.
5.2 Wireless Connectivity
The device supports multiple wireless connectivity options:
- Wi-Fi: Connect to local Wi-Fi networks for internet access and data transfer.
- Cellular Network (2G/3G/4G/5G): Utilize cellular data for connectivity in areas without Wi-Fi.
- Bluetooth 5.0: Pair with other Bluetooth-enabled devices such as printers or headsets.
- NFC: For near-field communication, enabling quick data exchange with compatible devices.

Image: Visual representation of the Eyoyo EY-U1's multiple connection methods, including 2G, 3G, 4G, 5G, Wi-Fi, Bluetooth, and NFC.
5.3 Custom Shortcuts
The device features customizable side buttons. These can be configured to trigger the scanner or launch frequently used business applications, enhancing operational efficiency.
6. Maintenance
6.1 Cleaning
To maintain optimal performance and appearance, regularly clean the device. Use a soft, lint-free cloth slightly dampened with water or a mild cleaning solution. Avoid harsh chemicals, abrasive cleaners, or excessive moisture. Pay particular attention to the scanning window and touchscreen.
6.2 Battery Care
The 4700mAh battery is designed for long shifts. To prolong battery life:
- Avoid fully discharging the battery frequently.
- Store the device in a cool, dry place when not in use for extended periods.
- Use only the provided charger and USB cable.

Image: A worker in a warehouse scanning a package with the Eyoyo EY-U1, illustrating the device's long battery life with details on working time (20 hours), charging time (3.5 hours), and standby time (350 hours).
6.3 Rugged Design
The EY-U1 features an IP66-rated industrial design, making it waterproof, dustproof, and resistant to drops from up to 1.5 meters. While designed for harsh environments, avoid intentional abuse and extreme conditions beyond its specified ratings.

Image: The Eyoyo EY-U1 scanner shown with water splashing on it, highlighting its drop-proof, IP66 waterproof, and dustproof features.
7. Troubleshooting
- Device not powering on: Ensure the battery is charged. Connect the device to the charger and wait a few minutes before attempting to power on again.
- Scanning issues:
- Ensure the barcode is clean and not severely damaged.
- Verify the scanner's laser is properly aligned with the barcode.
- Check ambient lighting conditions; extreme light or darkness can affect scanning.
- Connectivity problems (Wi-Fi/Bluetooth):
- Restart the device.
- Check network settings and ensure Wi-Fi or Bluetooth is enabled.
- For Wi-Fi, verify the network password is correct and the signal is strong.
- Slow performance: Close unnecessary applications running in the background. Clear cache if needed.
8. Specifications
| Feature | Detail |
|---|---|
| Model | EY-U1 |
| Operating System | Android 12 |
| Processor | 2.3GHz Octa-Core CPU |
| RAM | 4GB |
| ROM | 64GB |
| Display | 5.5-inch Full Touchscreen, 720x1440 resolution, Corning Gorilla Glass 3 |
| Barcode Scanning | 1D & 2D Barcodes (including damaged, worn, screen-displayed) |
| Connectivity | Wi-Fi, Cellular (2G/3G/4G/5G), Bluetooth 5.0, NFC, USB Cable |
| Battery | 4700mAh Lithium Ion (up to 12 hours use) |
| Durability | IP66-rated, Drop-proof (up to 1.5 meters), Dustproof, Waterproof |
| Dimensions (D x W x H) | 7.9" x 4.5" x 3.6" (from specifications) / 156x76x22.6 mm (from image) |
| Compatible Devices | Desktop, Laptop, POS, Smartphone, Tablet |
| Energy Specifications Met | CE, FCC, RoHS |
9. Warranty and Support
9.1 Manufacturer's Warranty
This Eyoyo product comes with a 1-Year Manufacturer Warranty. Please retain your proof of purchase for warranty claims.
9.2 Additional Protection Plans
Additional protection plans may be available for purchase separately, such as 4-Year Protection Plans or Complete Protect monthly plans. Refer to your retailer for details.
9.3 Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact Eyoyo customer support through their official website or the contact information provided with your purchase.