Meet DoorCam™ 3: The Advanced Smart Security Camera that requires no permanent installation. Outfitted with all of the features you love from DoorCam 2, the new DoorCam 3 now fits more doors and even comes with AI functionality (face detection) that saves battery life and dual power capability that includes USB. Door Cam 3 makes a great gift for renters, college students, and anyone who wants an easy setup to keep an eye outside their door.