The Dahua DH-VDKB01-BB is a smart 4MP Wi-Fi battery video doorbell kit designed to deliver clear 4MP video, intelligent detection features and flexible wireless installation. Features an ultra wide 180° fisheye lens with built in two way audio and support for both 2.4GHz and 5GHz Wi-Fi 6 networks and a wireless chime. This doorbell provides reliable front door monitoring with instant notifications directly to the DMSS mobile app.