brotect SUNKTA EF9-A 2.13"
BROTECT AirGlass Screen Protector User Manual
Model: SUNKTA EF9-A 2.13" Compatible
Introduction
This manual provides essential information for the installation and care of your BROTECT AirGlass Hybrid-Glass Screen Protector, designed specifically for the SUNKTA EF9-A 2.13" device. The AirGlass technology offers a unique combination of flexibility and extreme hardness, ensuring optimal protection and clarity for your device's screen.
Key features include:
- 9H Extreme Hardness: Provides robust protection against scratches.
- Ultra-Thin & Flexible: 2x thinner and more flexible than traditional tempered glass.
- High Transparency: Ensures a clear and sharp view of your screen.
- Anti-Fingerprint Layer: Minimizes smudges and dirt.
- Bubble-Free Installation: Optimized adhesive for easy application.
What's in the Box
- 3x BROTECT AirGlass Glass Screen Protector compatible with SUNKTA EF9-A 2.13"

Image: The product packaging showing "BROTECT Screen Protector" and "3 Pack", alongside a smartwatch with the screen protector already installed. This illustrates the product and its quantity.
Setup and Installation
Follow these steps carefully for a bubble-free installation of your BROTECT AirGlass screen protector.
Step 1: Prepare the Environment and Device
Before assembling, locate a dust-free area, such as a bathroom after a hot shower, to minimize airborne dust. Thoroughly clean your SUNKTA EF9-A 2.13" device screen to remove any dust, dirt, or fingerprints. Use a microfiber cloth and a screen cleaning solution if necessary. Ensure the screen is completely dry before proceeding.

Image: A diagram showing a hand cleaning a device screen with a cloth, indicating the first step of preparation for screen protector application.
Step 2: Align and Partially Apply
Carefully remove half of the thin cover film (liner) from one side of the screen protector. Align the exposed adhesive side of the screen protector precisely with one edge of your SUNKTA EF9-A 2.13" screen. Ensure the protector is perfectly centered and aligned with all cutouts (if any) on your device screen. The screen protector should be in an upright position on the display.
Step 3: Smooth and Remove Remaining Liner
Once the first half is aligned, use a credit card or a similar soft, flat tool to slowly and carefully smooth the screen protector onto the display, working from the applied edge towards the unapplied side. As you smooth, gradually peel off the remaining cover film from the other half of the screen protector. This technique helps prevent air bubbles.

Image: A diagram illustrating the process of smoothing the screen protector onto a device screen using a credit card, showing the removal of air bubbles.
Step 4: Remove Any Remaining Bubbles
After the protector is fully applied, gently push out any remaining small air bubbles towards the edges of the screen using the credit card or your finger wrapped in a soft cloth. Most small bubbles will disappear within 24-48 hours as the adhesive fully cures. Avoid pressing too hard to prevent damage to the screen or protector.

Image: Two transparent screen protectors are shown next to a smartwatch, demonstrating their precise cut and readiness for application.
Operating and Usage
Once installed, the BROTECT AirGlass screen protector operates seamlessly with your SUNKTA EF9-A 2.13" device. Its high transparency ensures that screen clarity and color vibrancy are maintained, providing an unhindered viewing experience. The unique touch-screen sensitivity of AirGlass allows for smooth and responsive interaction with your device, just as if no protector were present.
The anti-fingerprint layer helps keep your screen clean, reducing the need for frequent wiping. For optimal performance, ensure your hands are clean when interacting with the screen.
Maintenance and Care
To maintain the pristine condition and effectiveness of your BROTECT AirGlass screen protector, follow these simple care guidelines:
- Cleaning: Use a soft, lint-free cloth, preferably microfiber, to gently wipe the screen. For stubborn smudges, slightly dampen the cloth with water or a screen-safe cleaning solution. Avoid harsh chemicals, abrasive materials, or excessive pressure.
- Protection: While the AirGlass offers 9H hardness, it is not indestructible. Avoid placing your device with sharp objects (keys, coins) in pockets or bags to prevent potential damage.
- Replacement: If the screen protector becomes severely scratched, cracked, or loses its adhesive properties, it is recommended to replace it with a new one to maintain optimal screen protection and clarity.
Troubleshooting
Here are some common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Air Bubbles After Installation | Dust particles trapped underneath, or uneven application. | Gently push bubbles towards the nearest edge with a soft card. For persistent bubbles, lift the nearest corner of the protector slightly to remove dust with tape, then reapply. Small bubbles may disappear within 24-48 hours. |
| Protector Not Sticking Properly | Screen not cleaned thoroughly, or protector handled excessively on adhesive side. | Ensure the screen is completely clean and dry before application. Avoid touching the adhesive side. If the issue persists, the protector may need replacement. |
| Reduced Touch Sensitivity | Incorrect installation or a faulty protector. | Ensure the protector is fully adhered without air gaps. If the problem continues, contact customer support. |
Specifications
| Feature | Detail |
|---|---|
| Product Name | BROTECT AirGlass Hybrid-Glass Screen Protector |
| Compatibility | SUNKTA EF9-A 2.13" |
| Material | AirGlass (Hybrid Glass) |
| Hardness | 9H Extreme Hardness |
| Thickness | 2x thinner than ordinary tempered glass |
| Special Features | High Transparency, Anti-Fingerprint, Bubble-Free Installation |
| Number of Items | 3 per pack |
| Color | Clear |
| Product Dimensions | 6.69 x 4.13 x 0.5 inches (Packaging) |
| Item Weight | 0.329 ounces |
| Manufacturer | BROTECT |
| Origin | Made in Germany |

Image: A visual representation of the key properties of AirGlass technology, including flexibility, hardness, lightness, transparency, anti-fingerprint, and bubble-free application.

Image: A hand gently bending the AirGlass screen protector, showcasing its unique flexible glass property.
Warranty and Support
BROTECT products are manufactured with care in Germany, ensuring high quality and reliability. While specific warranty details are not provided in this manual, BROTECT typically stands behind its products. For warranty claims, technical support, or further assistance, please refer to the contact information provided on the product packaging or visit the official BROTECT website.

Image: A circular badge highlighting the BROTECT warranty, emphasizing "Best Quality," "Made in Germany," and "10 years Know-How," indicating the brand's commitment to quality and experience.