Th Ding Smart Doorbell makes interacting with visitors at your door step simple, even if you’re not home. The Ding smart doorbell is made of 3 parts which includes the doorbell button, doorbell chime and the Free app for you smartphone. Which these 3 devices, this smart doorbell allows you to see and view any person at your door. It is integrated with a one way video to view whoever is at the door and a 2 way communicator that gives you the ability to speak with anyone, anywhere as long as you are able to connect to your smartphone. When a visitor is at your door, they can press the doorbell button and a chime will “ding” in your home. Since it is connected to the Ding app, you can see and talk to the person at the door.