Meet the Doorbot

 

The DoorBot is a Wi-Fi-enabled doorbell that lets you see and talk to the visitors standing outside your entryway from an iOS or Android smartphone. When someone rings the bell, it initiates what is basically a video call on your phone. You don't even have to be at home, and you can set the DoorBot to work with multiple devices so that everyone who lives in your home can use it. It costs around $200.