I bought it to help the kids who couldn't reach to look through the peephole.
It doesn't require any wiring, you just replace the old peephole.
The installation is relatively easy.
The package includes 2 sets of screws for installation on thicker and thinner doors.
From the outside, no one can tell that it's not a regular peephole.
To store images and videos, you need to add a micro SD card, which is not included.
The screen quality is poor as it has low resolution and the colors appear pastel when viewed from an angle.
The image is somewhat dark and requires good lighting outside the door.
Activating the view is done with the button and it takes about 2 seconds to show the image, which seems quite slow for something so immediate, considering that the processor does nothing else (no communication connections or other background tasks).