The good old doorbells let you know when someone is visiting you. But they don’t tell you who it is. In this day and age, you don’t have to put up with that. These 2 smart doorbells allow you to see who’s knocking at your door, even when you are not home:
SkyBell Wi-Fi Doorbell with Motion Sensor: lets you answer your door from iPhone and Android devices from anywhere. It is very easy to install. The doorbell even alerts you when the person at your door does not ring the bell.
DoorBot: this iPhone doorbell lets you see and talk to your visitors on your phone or tablet. It works on battery too. You get adjustable camera angle, night vision, and a weather-resistant design.
These doorbells allow you to see and talk to your visitors before letting them in. They make avoiding annoying people a lot easier.