1. Introduction
Thank you for purchasing the YEEIN Underwater Camera US-6810. This compact digital camera is designed for capturing high-quality photos and videos in various environments, including underwater. Featuring 4K video recording, 48MP photo resolution, autofocus, and a dual-screen design, it is suitable for activities such as snorkeling, swimming, and general travel photography. Please read this manual thoroughly before using the camera to ensure proper operation and to maximize its performance and longevity.

Image: The YEEIN Underwater Camera shown with a family enjoying a beach day, highlighting its use for capturing memories.
2. Safety Information
- Ensure the battery compartment and all ports are securely closed and sealed before submerging the camera in water. Failure to do so will compromise its waterproof integrity and may cause damage.
- Do not expose the camera to extreme temperatures or direct sunlight for extended periods.
- Use only the specified battery type and charger. Improper use may lead to fire, explosion, or other hazards.
- Keep the camera and its accessories out of reach of children to prevent accidents.
- Avoid dropping or subjecting the camera to strong impacts.
3. Package Contents
Verify that all items listed below are included in your package:
- YEEIN Underwater Camera US-6810
- Rechargeable Lithium-Ion Battery (1050 mAh)
- 32GB Micro SD Card
- Floating Strap
- USB Cable
- User Manual
- Pouch

Image: A visual representation of all items included in the YEEIN Underwater Camera US-6810 package.
4. Product Overview
The YEEIN US-6810 features a robust, waterproof design with intuitive controls. It includes a front screen for selfies and a rear screen for general viewing and menu navigation.

Image: Front and rear views of the YEEIN Underwater Camera, illustrating its design and key components.
5. Setup
5.1 Battery and Memory Card Installation
Before first use, install the battery and memory card.
- Open Battery Cover: Locate the battery compartment lock on the side of the camera. Push the cover lock (A) and then slide the cover (B) to open the compartment.
- Insert Battery: Insert the rechargeable Lithium-Ion battery into the compartment, ensuring the correct orientation as indicated by the polarity markings.
- Insert Memory Card: Insert the 32GB Micro SD card into the designated slot until it clicks into place.
- Close Cover: Close the battery compartment cover firmly until it clicks and the lock engages, ensuring a waterproof seal.

Image: Step-by-step guide for installing the battery and memory card, crucial for maintaining the camera's waterproof integrity.
5.2 Charging the Camera
Connect the camera to a power source using the provided USB cable. The charging indicator will illuminate. A full charge typically takes approximately 3 hours.
5.3 Attaching the Floating Strap
Attach the floating strap to the camera's strap loop. This accessory helps prevent the camera from sinking if accidentally dropped in water.
6. Operation
6.1 Power On/Off
Press and hold the Power button to turn the camera on or off.
6.2 Mode Selection
Press the 'MODE' button to switch between Photo mode, Video mode, and Playback mode.
6.3 Dual Screen Function
To switch between the front and rear screens, long-press the 'MODE' button. This is particularly useful for taking selfies.

Image: The camera demonstrating its dual screen feature, allowing users to easily switch between front and rear displays.
6.4 Taking Photos with Autofocus
In Photo mode, aim the camera at your subject. The autofocus system will automatically adjust for clarity. Press the Shutter button fully to capture the image.

Image: A visual example of the autofocus function, showing a clear image of an underwater starfish compared to an unfocused one.
6.5 Recording Videos
In Video mode, press the Shutter button to start recording. Press it again to stop recording.
6.6 Using the Fill Light
The camera features a built-in fill light for improved visibility in low-light conditions, especially underwater. Activate or deactivate it via the menu settings or a dedicated button (refer to camera layout for specific button).

Image: Demonstrates the effectiveness of the fill light in an underwater environment, enhancing clarity and color.
6.7 Self-Timer Function
Access the self-timer option in the camera's menu to set a delay (e.g., 2s, 5s, 10s) before a photo is taken. This is useful for group shots or when you want to be in the picture.

Image: Illustrates the self-timer feature, useful for capturing moments with yourself or a group.
6.8 Connecting to a Computer
To transfer photos and videos, connect the camera to your computer using the USB cable. The camera will appear as a removable disk, allowing you to access your files.
7. Maintenance
- Cleaning: After underwater use, rinse the camera with fresh water and wipe it dry with a soft cloth. Ensure no sand or debris is lodged in the seals.
- Lens Care: Clean the lens with a soft, lint-free cloth specifically designed for camera lenses. Avoid touching the lens with your fingers.
- Seals: Regularly inspect the waterproof seals for any signs of damage, dirt, or wear. Keep them clean and free of foreign particles.
- Storage: Store the camera in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: If storing for an extended period, charge the battery to about 50% and remove it from the camera.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera does not power on. | Battery is low or not inserted correctly. | Charge the battery fully. Reinsert the battery, ensuring correct orientation. |
| Cannot take photos/videos. | Memory card is full, not inserted, or corrupted. | Check memory card. Delete unnecessary files. Reformat card (this will erase all data). |
| Water inside camera. | Battery cover not properly sealed. Damaged seals. | Immediately power off the camera. Open compartment and dry thoroughly. Do not use underwater again. Contact support. |
| Poor image/video quality. | Lens is dirty. Low light conditions. Incorrect settings. | Clean the lens. Use fill light in low light. Adjust resolution settings. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Name | US-6810 |
| Photo Resolution | Up to 48 MP |
| Video Resolution | 4K (2160p) |
| Water Resistance | Up to 17 feet (IP68 standard) |
| Screens | Dual LCD (Front & Rear) |
| Autofocus | Yes |
| Image Stabilization | Digital |
| Storage | Micro SD card (up to 256GB, 32GB included) |
| Battery Type | Lithium-Ion (1050 mAh) |
| Battery Life | Approx. 3 hours (per full charge) |
| Connectivity | USB |
| Weight | 120 Grams |
| Color | Blue |
10. Warranty and Support
The YEEIN Underwater Camera US-6810 comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or failure to follow the instructions in this manual.
For technical support, warranty claims, or any questions regarding your product, please contact YEEIN customer service through the retailer where the product was purchased or refer to the contact information provided in your product packaging.





