








Mini camera in a book WF-WJ50 WiFi


The mini camera in a book by Spreest is an imperceptible but extremely effective video recording tool.
Because the camera is hidden in a fake book, no one will guess its true function, and you will have full insight into the situation from anywhere via a mobile app.
An ideal solution for people looking for an invisible way to monitor rooms.
Key features
1. Mobile application – Control and view the camera feed in real-time on your phone from anywhere in the world.
2. Built-in 32 GB memory – Long hours of video footage without the need for frequent data transfer.
3. High 4k image quality – Ideal for recording important moments or identifying details.
4. Recording with sound – This allows for a better understanding of the recording's context.
5. Motion detection with notifications – The camera starts recording only when something happens, saving space on the device.
6. Loop recording – Automatic overwriting of the oldest files to ensure you never run out of space.
7. Recording and taking photos – Everything that happens in front of the camera can be recorded or photographed with one click in the app. The viewing angle is 90°.
8. Battery operation – The 3000 mAh battery ensures long operation, allowing the camera to work for up to 9 hours.
9. Indicator LED for operating status – You always know the camera's operating status. The LED can be turned off in the mobile app to avoid arousing suspicion.
10. Discreet camera concealment – Thanks to its aesthetic design and classic book cover, the camera is practically invisible to passers-by.
Invisible Monitoring
The book fulfills its role like any classic object at home – it looks completely neutral and naturally blends into the interior decor. It is perfectly suited for various environments – both on a bookshelf and on a desk. Thanks to this invisibility, it is an ideal choice to ensure that no one notices they are being observed.
Imagine hiring a caregiver for a loved one. The book lies on the table in their room, and no one suspects it's more than just a decoration. Meanwhile, you gain the ability to ensure that your loved one receives proper care and is treated with due attention.
This gives you not only a monitoring tool but, above all, peace of mind and a sense of control – all in a completely discreet manner.
Mobile Application
From the application, you can:
1. Watch live preview in 1080P or 4K quality, in real-time
2. Record video directly to the device's built-in memory and browse in the application or store files in the cloud (additional charge)
3. Take photos from the camera feed
4. Listen in real-time thanks to the camera's microphone
5. Manage recording modes:
- continuous recording (according to schedule)
- recording upon motion detection
- recording schedule with two time slots
6. Set recording operation hours and alert frequency
7. Enable motion detection and set its sensitivity (Low / Normal / High)
8. Receive event notifications (motion detection)
9. Configure the alert schedule (day and hours)
10. Control IR night mode – automatically or manually
11. Set time zone, date and time, and synchronize time with your phone
12. Turn off the glowing LED for discreet mode
Technical Specifications
- Built-in memory: 32 GB
- Mobile application: Yes (Android / iOS)
- Connectivity: Wi-Fi 2.4 GHz
- Camera resolution: 4K, 1080p
- Sensor: 5 MP CMOS
- Video format: AVI
- Compression: H.264
- Viewing angle: 90°
- Frames per second: 25 fps
- Power supply: Built-in rechargeable battery
- Charging port: USB-C
- Battery capacity: 3000 mAh
- Camera operating time: Up to 9 hours
- Camera charging time: 3-4 hours
- Material: Cardboard
- Dimensions: 21.8 x 15.3 x 4.8 cm
- Weight: 136 g
Set includes
- 1x WF-WJ50 WiFi Mini Camera in Book
- 1x Power cable








