Hey Google, what is the weather like tomorrow? Alexa, what is 1 cup in ounces? Hey Siri, turn on all the outside lights. An extra pair of virtual hands in your home is super helpful and even more so when they are integrated with other smart devices. Open the garage, turn on the lights, turn on the Christmas tree, or lock the front door all with the click of a button or simple command. There are a myriad of devices you can connect to and control via voice command.