Works with Alexa for voice control (Alexa device sold separately). SECURITY HAS NEVER LOOKED SO GOOD: The Nest Cam Outdoor is here to help set your mind at ease. Nest Cam Outdoor is beautiful, weatherproof, and it plugs into power, so you never have to worry about dead batteries. Whether you're watching for the kids to get home from school, checking to see if your package has arrived, or scaring off a potential burglar, Nest Cam Outdoor is here to help! DON'T MISS A THING WITH NEST ALERTS: You can't always be watching your video feed. Nest Cam looks for motion and listens for loud sounds, like a boom or the crash from a window breaking. Then it can alert you with a photo from the event, and even save some pictures in the Nest app for three hours.