As always, the camera was delivered very quickly. I already have two products from this Chinese manufacturer. I like the following points about the K&F Concept camera: - the image quality is decent day and night (see photos) - the intercom system works perfectly. You understand the other person very well (of course, a good internet connection is a prerequisite) - As with other cameras of this brand, you can buy a memory card once to save photos/videos and not have to to pay a monthly fee for this, as with some other providers pay. - The camera reliably detects movements. When it detects movement, a small blue dot lights up in front. So you can see that the camera is recording. What's not so good: - At night, the sharpness of the images unfortunately decreases after a few meters. But what I don't know about other brands is different. However, you can see very far. In the images you can see once during the day, once at night and once at night with the light on (this can be turned on and off in the app) - if the app notifications are enabled (this which you usually have with a camera, otherwise nothing is displayed when someone is recognized) the application icon is still there at the top of the phone, with the comment that resident messaging has been activated. Personally, I find it a bit tedious. In short, I think the K&F Concept camera is as good as a more expensive brand. To the point of recording to a memory card, even BETTER than some other cameras.