Features:

1. No vsible wires from the door's exterior, and exact same looking as original one, so it does not look suspicious.

2. It's noble and durable as it's pure brass meteria.

3. 5.8G no-interference frequency, 100m wireless range.

4. Records video in high and low light (0.008lux) situations.

5. 90° view angle makes it easy to capture footage of a corridor.

6. Motion detection available: record only when there is movement detected outside the door.

7. No need any cable installation, just plug and play.

8. Support SD card (up to 32G) recording for any evidence needed.