Klein. Handy. Super easy to use. At first glance, one would not expect that the "garage door" is actually a mini-camera. The sound and picture quality are for such a dwarf amazingly well. I am fully satisfied.
The only point on which I must personally practice a little, the camera must be kept so that the "desired object" is the middle of the image. Mostly I think it is too high or too low ... but with a little practice ...