When I found this device, I was not interested much as I had an angled narrow doorbell space and I thought this should be just a kind of video doorbell but I found Amazon sold some adapters for the narrow angled space and this was a kind of security camera. Besides, I saw that Police arrested a criminal thanks to this camera in local news. So, I decided to get this. After installation, even though there is a small monthly fee, I am 1000% happy with this doorbell security camera. When there is a motion, it alarms me before they ring a bell and recorded image and sound automatically. Plus I can answer the phone even though I am away as long as 4G is working in my phone. Awesome product, must have item.