Many people traveled to Las Vegas, Nevada last week for the 50th Consumer Electronics Show, or CES. The show is said to have the largest collection of new electronic devices in the world. The 2017 show had many examples of “smart home” devices. “Smart home” technology is designed to make life easier for people by letting computers control many things inside our homes. One such device actually begins working outside the home, when someone arrives and rings the doorbell. Jeremy Warren is with smart home service provider Vivint. “When someone comes to your front door and rings the doorbell, the light can turn on immediately. I get a notification when I’m halfway around the world that someone came, and I can start talking to the person who’s at my front door, and I can say, ‘Oh, here let me let you in.’ I can unlock the door for them very easily.” Another use of smart home technology is being able to watch what is taking place in your home whether you are just around the corner or halfway around the world. Devices can even let homeowners look in on dogs, cats or other pets when they are away. One electronics maker launched a device that lets people see and interact with their animals when they are away. The device, from Petcube, lets you remotely watch and talk to your pet through a personal device, according to a company official. It can even give the pet a treat if you approve and order it.