1. Product Overview
The YONDENE K4000 is a compact 5K body camera designed for various recording needs, including sports, outdoor activities, vlogging, and security. It features a 270-degree rotatable lens, a 1.33-inch HD display, and supports an external microphone for clear audio capture. This manual provides essential information for operating and maintaining your device.

Image 1.1: YONDENE K4000 5K Body Camera highlighting key features like 5K resolution, Wi-Fi, image stabilization, external microphone, SONY sensor, 256GB max storage, 1.33" display, and 270-degree rotation.
Key Features:
- 5K Video Resolution: Supports real 5K/15fps, 4K/60fps, 4K/30fps, and 2.7K/30fps video recording.
- 270° Rotatable Lens: Manually rotate the camera lens horizontally for flexible shooting angles.
- External Microphone: Includes a lavalier microphone for enhanced audio quality.
- Image Stabilization: Built-in electronic anti-shake function for clear, stable footage.
- Wi-Fi Connectivity: Wireless transfer and share videos via the "XDV PRO" app.
- Compact Design: Portable and lightweight, suitable for various applications.
- Long Battery Life: Built-in rechargeable battery provides 1.5-2 hours of operation.
2. Setup Guide
2.1 Charging the Battery
Before first use, fully charge the camera's built-in battery. Connect the camera to a power source using the provided Type-C USB cable. The charging indicator will show the charging status. A full charge typically takes 1.5-2 hours. The camera supports recording while charging.
Image 2.1: The camera's rechargeable battery and the included lavalier back clip accessory.
2.2 Inserting the MicroSD Card
The camera supports MicroSD cards up to 256GB. A 128GB card is typically included. Locate the MicroSD card slot on the camera. Gently insert the card with the gold contacts facing the correct direction until it clicks into place. To remove, press the card gently until it springs out.
2.3 Attaching the External Microphone
Connect the lavalier external microphone to the camera's designated microphone port. Ensure the connection is secure for optimal audio recording. The microphone can be clipped to clothing for hands-free operation.
Image 2.2: The YONDENE K4000 camera with the lavalier microphone connected, demonstrating its use for clear audio recording.
2.4 Powering On/Off
To power on, press and hold the Power button until the screen illuminates. To power off, press and hold the Power button again until the device shuts down.
3. Operating Instructions
3.1 Basic Video and Photo Recording
- Video Recording: Press the Record button to start recording. Press it again to stop.
- Photo Capture: Switch to photo mode (refer to on-screen menu) and press the Shutter button to take a picture.
Image 3.1: The camera's display showing available video resolutions, including 5K at 15fps and 4K at 60/30fps.
3.2 270° Lens Rotation
The camera lens can be manually rotated up to 270 degrees horizontally. This allows for quick adjustment of the shooting perspective without repositioning the entire camera. Gently rotate the lens assembly to your desired angle.
Image 3.2: Illustration of the camera's 270-degree rotatable lens, demonstrating its flexibility for various shooting angles.
3.3 Image Stabilization (EIS)
The camera features Electronic Image Stabilization (EIS) to reduce blur and shakiness in your recordings. This function is automatically enabled or can be toggled via the camera's settings menu. EIS helps maintain clear images even in dynamic situations.
Image 3.3: A visual comparison demonstrating the effectiveness of the built-in image stabilization feature (EIS) in producing stable and blur-free footage.
3.4 Advanced Recording Modes
The K4000 supports several advanced recording modes:
- Loop Recording: Continuously records, overwriting the oldest files when the memory card is full.
- Slow Motion: Captures video at a higher frame rate for slow-motion playback.
- Time-Lapse: Records frames at set intervals to create a sped-up video.
- Continuous Photo Taking: Captures multiple photos in quick succession.
- Timed Photo Taking: Takes photos automatically after a set delay.
Access and configure these modes through the camera's on-screen menu.
3.5 Wi-Fi Connectivity and App Usage
The camera supports Wi-Fi hotspot connection. Download and install the "XDV PRO" app on your smartphone. Connect your phone to the camera's Wi-Fi network. Through the app, you can remotely control the camera, preview footage, and wirelessly transfer/download videos and photos to your phone for easy sharing.
Image 3.4: The camera's Wi-Fi feature for wireless data transfer and the 270-degree lens rotation in action.
4. Maintenance
4.1 Cleaning the Camera
- Use a soft, lint-free cloth to clean the camera body.
- For the lens, use a specialized lens cleaning cloth and solution. Avoid harsh chemicals or abrasive materials.
- Ensure all ports are free of dust and debris.
4.2 Storage
- Store the camera in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for extended periods, ensure the battery is partially charged (around 50%) to prolong its lifespan.
- Remove the MicroSD card if not in use for a long time.
4.3 Battery Care
- Avoid fully discharging the battery frequently.
- Do not expose the battery to high temperatures.
- If the battery performance significantly degrades, contact customer support for assistance.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera does not power on. | Low battery; faulty battery; power button issue. | Charge the battery fully. Ensure the power button is pressed correctly. |
| Video footage is shaky or blurry. | EIS is off; excessive movement; low light conditions. | Ensure EIS is enabled in settings. Minimize camera movement during recording. Record in adequate lighting. |
| Poor audio quality. | External microphone not connected properly; microphone obstruction; windy environment. | Check microphone connection. Ensure microphone is not covered. Use a wind muff if available in windy conditions. |
| Cannot connect to Wi-Fi/App. | Incorrect Wi-Fi password; app not updated; camera Wi-Fi not enabled. | Verify Wi-Fi password. Update "XDV PRO" app. Enable Wi-Fi on the camera. Restart both devices. |
| MicroSD card error. | Card not inserted correctly; incompatible card; corrupted card. | Reinsert the card. Try a different compatible MicroSD card. Format the card (this will erase all data). |
6. Specifications
| Feature | Detail |
|---|---|
| Brand | YONDENE |
| Model Number | K4000 |
| Video Capture Resolution | 5K (15fps), 4K (60/30fps), 2.7K (30fps) |
| Photo Sensor Technology | CMOS (SONY IMX Starlight Lens) |
| Lens Rotation | 270 Degrees (Manual Horizontal) |
| Display Screen Size | 1.33 Inches |
| Image Stabilization | Electronic Image Stabilization (EIS) |
| Connectivity | Wi-Fi, Type-C USB |
| External Microphone | Included Lavalier Microphone |
| Storage | MicroSD card, up to 256GB (128GB included) |
| Battery Life | Approx. 1.5-2 hours (recording) |
| Item Weight | 2.4 ounces |
| Product Dimensions | 6.88 x 4.33 x 2.24 inches |
7. Warranty and Support
7.1 Warranty Information
This product is covered by a manufacturer's warranty. Please refer to the product packaging or the seller's terms and conditions for specific warranty duration and coverage details. Keep your proof of purchase for warranty claims.
7.2 Customer Support
For technical assistance, troubleshooting not covered in this manual, or warranty inquiries, please contact the seller or manufacturer directly through the platform where the product was purchased. Refer to the contact information provided with your product or on the seller's store page.





