Read on to find out what to look for when choosing a video doorbell for your home. When choosing a smart doorbell you have to decide if you want a wireless device that runs on batteries or one that gets its power from low voltage doorbell wiring. Naturally, a wireless doorbell is the easiest type to install, as it draws power from batteries rather than from your home's electric and doesn't require that you turn off power or mess with any wiring whatsoever. The downside to wireless doorbells is that their batteries tend to deplete batteries quickly depending on usage, lasting anywhere from two to six months. If you live in an area where the winters are cold you can expect to recharge or replace your batteries every couple of months, and run the risk of your doorbell shutting down at an inopportune time. Any smart doorbell worth its salt is equipped with a video camera that sends an alert to your phone along with a live video stream when the doorbell button is pressed.