We are not techy people. Our seller on our home used this system and swore by it. During our inspection/walk thru she was notified of our presence immediately and just patched through to make sure we were who we were. She was able to talk to us and we were able to hear her from over 15 feet away clear as day. After reviewing videos and doing some research and talking to her about the system, we installed the bells and tested out the app. It was everything we were expecting and more! We can also edit the range so we don’t pick up motion from the road. It’s a little trial and error but pretty easy to zone in. It did rain the other night but it did not detect the rain – something I wondered about. So far we’ve used it for 4 days and are very happy with it! We did buy the alarm system as well but we have not had a chance to hook those up as we are still in the moving process. So far we’d definitely purchase these again if we ever needed to.