In other words, you can use your smartphone to see who’s at the door, and you can do it from anywhere in the world.

It brings a whole new level of convenience. You’ll never have to worry about missing a delivery or having a package left in the wrong place—you can be at work when FedEx arrives, and use the intercom feature to tell the delivery man to leave the package where you please.

It’s also a great security tool. You can use the intercom to give the appearance that you’re home, turning away everyone from annoying salesmen to potential burglars. It activates with motion detection, so you don’t have to wait for the doorbell to ring before you’re alerted that someone is at your home.

There are various ways to install Ring, and it starts at $199. Go to ring.com to learn more.