Used to have one of these. It still worked fine, but I replaced it with a Ring doorbell cam because it seemed slow to notify my phone when someone rang the doorbell. I did like, however, that it was free to store clips in the cloud. (forget how many days worth) The Ring (Pro model, I think) is much faster to notify my phone when someone is at the door and it works with Amazon Echo and Fire devices.
Unfortunately, I have to pay a annual fee to store motion clips in the cloud.
Does anyone know if this is the 2.0 version and not the initial doorbell Zmodo released?