Commonly known as a video doorbell, Wi-Fi doorbell, smart doorbell or even a smart doorbell camera, it puts control of your home's security at your fingertips. It is a Wi-Fi-enabled device that includes motion detectors, a camera and also a speaker. You can remotely answer the door from anywhere, at any time, and record any activity in the camera's view. To anyone at your door, it's just like a regular doorbell as it chimes like an ordinary doorbell. You can answer it in person if you're home, or on your phone or tablet if you're out – or keen to avoid a visitor.