@Webster Webster I have ring in my home and it's the best thing I have done. I receive couriers while I am overseas and my teens use there phones to check door before opening. I use doorbell extenders for the ring tone to go upstairs so my son can hear if he is sleeping (he works shift) and it has live view for viewing any time. Runs off battery or mains, I use battery and I charge once a month overnight 4 hours