The Dahua Wi-Fi video doorbell lets homeowners see and talk to visitors from their smartphone, wherever they have an internet connection. A built-in camera, microphone and speaker deliver live video and two-way conversation when someone presses the button, and the user can be alerted to activity at the door through the mobile app. Connecting over Wi-Fi keeps installation simple compared with a full wired intercom system, which makes it attractive for houses, townhouses and apartments where running new cable is difficult. It is a practical way to reduce missed deliveries, screen unexpected callers and keep an eye on the entrance. The doorbell can be paired with a wireless chime for an audible indoor alert.