the camera does a loud clicking noise every time the night mode is on/off and at random times, which would wake up/scare any baby.

After complete setup, the cameras continued to make lots of loud clicking noises throughout the the day and night

Other reviews mention loud clicking when switching to night view, and that indeed is true - and it gets especially intense at dusk when light conditions are on the verge of dark, and cameras switch every few seconds

First, I'm not sure what switching takes place between night vision and normal modes, but every time the camera switches between the two modes it emits a fairly loud clicking noise

It's just a loud click, but still, until I found out what it was, it was a little worrying.

Excellent I really liked them a lot