1. Product Overview
The Yixinxin Underwater Camera is a durable and waterproof digital camera designed for capturing photos and videos in various environments, including underwater up to 10 feet. It features a 30MP sensor for high-resolution images and records Full HD 1080P video.

Image: Front view of the Yixinxin Underwater Camera, highlighting its compact design and lens.

Image: The camera submerged in water, illustrating its 10-foot waterproof capability.
2. Setup
2.1 Battery Installation
To ensure the camera's waterproof integrity, the battery compartment is sealed tightly. Follow these steps to open it:
- With one hand, press the cover lock.
- Simultaneously, with the other hand (or using a tool), push out the battery cover to open the battery door.
- Insert the 650mAh lithium battery into the compartment, ensuring correct polarity.
- Close the battery door securely until it clicks into place, ensuring a watertight seal.

Image: Step-by-step visual guide on how to safely open the camera's battery compartment.
2.2 Micro SD Card Insertion
This camera supports a micro SD card up to 128GB (not included). It is recommended to format the SD card before first use to prevent data loss and ensure proper functionality.
- Locate the micro SD card slot, usually next to the battery compartment.
- Insert the micro SD card with the gold contacts facing the correct direction until it clicks into place.
- Close the compartment cover securely.
2.3 Charging the Camera
The camera is equipped with a 650mAh lithium battery. It can be charged using the provided USB cable.
- Connect the camera to a power source (e.g., computer USB port, USB wall adapter) using the USB cable.
- The camera can be used while charging, extending your shooting time.

Image: The camera displaying battery life and indicating it can be used while charging.
3. Operating Instructions
3.1 Powering On/Off
- To power on, press and hold the power button located on the top of the camera.
- To power off, press and hold the power button again.
3.2 Basic Controls
- Shutter Button: Press to take a photo or start/stop video recording.
- Mode Button: Switches between photo, video, and playback modes.
- Zoom Buttons (W/T): Adjusts the 16X digital zoom. 'W' for wide, 'T' for telephoto.
- Menu/SET Button: Accesses the menu settings or confirms selections.
- Navigation Buttons: Used to navigate through menus and settings.
3.3 Taking Photos
- Ensure the camera is in photo mode (indicated on the screen).
- Frame your shot using the 2.7-inch widescreen display.
- Press the shutter button halfway to focus, then fully press to capture the image.

Image: A visual comparison demonstrating the higher definition of 1080P resolution compared to 720P.
3.4 Recording Videos
- Switch to video mode using the Mode button.
- Press the shutter button to start recording. A timer or indicator will show recording is active.
- Press the shutter button again to stop recording.
3.5 Special Features
- 16X Digital Zoom: Use the 'W' and 'T' buttons to zoom in or out on your subject.
- Continuous Shooting: The camera supports up to 6 continuous shots, ideal for capturing fast-moving action.
- Electronic Anti-Shake: This function helps stabilize images and videos, reducing blur from camera movement.

Image: A side-by-side comparison showing the effect of Electronic Image Stabilization, with the 'ON' image appearing clearer and more stable.

Image: Examples of the camera being used during diving, swimming, boating, and surfing, demonstrating its versatility.
4. Maintenance
4.1 Cleaning the Camera
- After underwater use, rinse the camera with fresh water to remove salt or chlorine.
- Wipe the camera body with a soft, clean cloth.
- Use a lens cleaning cloth for the camera lens and screen. Avoid abrasive materials.
4.2 Battery Care
- Charge the battery fully before extended storage.
- Avoid exposing the battery to extreme temperatures.
- If the camera will not be used for a long period, remove the battery.
4.3 Waterproof Seal Care
- Regularly inspect the rubber seals around the battery and memory card compartments for dirt, sand, or damage.
- Clean the seals gently with a soft, damp cloth if necessary.
- Do not use sharp objects to clean the seals.
5. Troubleshooting
- Camera not turning on: Ensure the battery is fully charged and correctly inserted.
- SD card not recognized: Ensure the micro SD card is inserted correctly. Try formatting the SD card (this will erase all data) or try a different compatible SD card.
- Video not stopping: If the video recording does not stop, try pressing the shutter button again firmly. If the issue persists, remove and reinsert the battery to reset the camera.
- Blurry images: Check the lens for smudges or dirt. Ensure there is adequate lighting. Verify that Electronic Anti-Shake is enabled in settings if needed.
- Water leakage: Immediately power off the camera and remove the battery. Carefully inspect all seals for damage or improper closure. Do not use the camera underwater again until the issue is resolved.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | Yixinxin |
| Model Number | YIXINXIN |
| Water Resistance Level | Waterproof (up to 10 feet) |
| Effective Still Resolution | 30 MP |
| Video Resolution | 1080p (1920x1080P/25fps) |
| Digital Zoom | 16x |
| Screen Size | 2.7 Inches |
| Image Stabilization | Digital |
| Battery Type | 650mAh Lithium Ion |
| Supported Media Type | Micro SD (up to 128GB) |
| Connectivity Technology | USB |
| Item Weight | 128 Grams |
7. Warranty and Support
Yisence Tech offers friendly after-sale service for this product. For any questions, technical support, or warranty inquiries, please contact our customer service team. Refer to your purchase documentation for specific contact details.
Please retain your proof of purchase for warranty claims.