1. Introduction
This manual provides comprehensive instructions for the Chujianxi Mini 4K HD Wireless WiFi Camera (Model: sdw2). Please read this manual carefully before operating the device to ensure proper use and optimal performance. Keep this manual for future reference.
2. Package Contents
- Chujianxi Mini 4K HD Wireless WiFi Camera
- Camera Mount Bracket
- USB Charging Cable
- User Manual
3. Product Overview
The Chujianxi Mini 4K HD Wireless WiFi Camera is a compact surveillance device designed for indoor and outdoor use. It features 4K video resolution, two-way audio, motion detection, and night vision capabilities. The camera supports both cloud storage and local TF card storage.

Figure 3.1: Chujianxi Mini 4K HD Wireless WiFi Camera and its accompanying mobile application interface, demonstrating key features like 4K resolution, 2.4G WiFi connectivity, and two-way talk.
Key Features:
- 4K HD Resolution: Captures clear and detailed video footage.
- 140° Wide-Angle Lens: Provides an expansive field of view.
- Motion Detection: Sends real-time notifications upon detecting movement.
- Two-Way Audio: Built-in microphone and speaker for communication via the app.
- Night Vision: Automatically activates in low-light conditions for clear monitoring.
- Storage Options: Supports Cloud storage and TF card storage (up to 256GB, not included).
- Wireless Connectivity: Compatible with 2.4 GHz WiFi networks.
- Long Battery Life: 3000 mAh battery provides up to 10 hours of operation.
4. Setup
4.1 Charging the Camera
Before initial use, fully charge the camera using the provided USB cable. Connect the USB cable to the camera's charging port and a standard USB power adapter (not included). The charging indicator light will show the charging status.
4.2 Inserting a TF Card (Optional)
If you plan to use local storage, insert a TF (MicroSD) card (up to 256GB, not included) into the designated slot. Ensure the camera is powered off before inserting or removing the card.

Figure 4.1: Illustration of the camera's TF card slot and the concept of cloud storage, highlighting the flexibility in data storage options.
4.3 App Installation and Camera Pairing
- Download the official mobile application from your smartphone's app store (iOS or Android). Refer to the packaging or a QR code in the quick start guide for the correct app.
- Register an account and log in.
- Power on the camera.
- Follow the in-app instructions to add a new device. This typically involves scanning a QR code on the camera or connecting to the camera's temporary WiFi hotspot.
- Connect the camera to your home 2.4 GHz WiFi network.
- Once successfully paired, you can view the live feed and access camera settings through the app.
5. Operating the Camera
5.1 Live View and Recording
Access the live video feed through the mobile application. From the live view interface, you can manually start/stop recording, take snapshots, and monitor the area.
5.2 Motion Detection
Enable motion detection in the app settings. When motion is detected, the camera will automatically record and send a real-time notification to your smartphone. You can adjust sensitivity levels and set detection zones.
5.3 Two-Way Audio
Utilize the two-way audio feature to communicate with individuals near the camera. Press and hold the microphone icon in the app to speak, and release to listen.
5.4 Night Vision
The camera automatically switches to night vision mode in low-light conditions, providing clear black and white video footage. This feature ensures continuous monitoring regardless of ambient light.
5.5 Playback and Storage Management
Recorded footage can be accessed via the app. You can review videos stored on the TF card or in the cloud (if subscribed). The app allows you to download, delete, or share recordings.

Figure 5.1: The mobile application interface demonstrating real-time access to multiple camera feeds, suitable for monitoring children, pets, elderly family members, or general home security.

Figure 5.2: Depiction of the multi-user real-time viewing feature, allowing several individuals to access the camera feed simultaneously on iOS and Android devices.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the camera lens and body. Avoid abrasive cleaners or solvents.
- Firmware Updates: Regularly check the mobile application for firmware updates to ensure optimal performance and security.
- Battery Care: To prolong battery life, avoid extreme temperatures and fully charge the camera before long periods of inactivity.
- Storage Management: Periodically review and manage your recorded footage to free up storage space on the TF card or cloud.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Camera not connecting to WiFi | Incorrect WiFi password; Camera too far from router; Only supports 2.4 GHz WiFi. | Verify WiFi password; Move camera closer to router; Ensure your router is broadcasting a 2.4 GHz network. |
| Poor video quality | Insufficient network bandwidth; Dirty lens; Low light conditions. | Check internet speed; Clean the camera lens; Ensure night vision is active in low light. |
| Motion detection not working | Feature disabled in app; Incorrect sensitivity settings; Obstructions in detection zone. | Enable motion detection in app; Adjust sensitivity; Clear any obstructions. |
| Battery drains quickly | Frequent live view access; High motion detection activity; Extreme temperatures. | Reduce live view time; Adjust motion detection frequency; Operate in moderate temperatures. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | sdw2 |
| Brand | Chujianxi |
| Video Recording Resolution | 4K |
| Connectivity Technology | Wireless (Wi-Fi 2.4 GHz) |
| Special Features | Two-Way Audio, Motion Detector, Night Vision |
| Indoor/Outdoor Use | Outdoor (also suitable for indoor) |
| Mounting Type | Wall Mount Bracket |
| Included Components | Camera Mount Bracket |
| Battery Included | Yes |
| Battery Composition | Lithium Polymer |
| Product Dimensions (L x W x H) | 4.99 x 3.6 x 4 cm (1.96 x 1.42 x 1.57 inches) |
| Item Weight | 230 grams (0.51 lbs) |
| Recommended Uses | Indoor Security |
Note: Specifications are subject to change without prior notice.
9. Warranty and Support
For warranty information and technical support, please refer to the contact details provided on the product packaging or the official Chujianxi website. Keep your purchase receipt as proof of purchase.
For further assistance, you may contact Chujianxi customer service directly.