VDP-A1 is an AC-powered video door phone that is designed for you to see a visitor and answer your door with a smart phone from anywhere. With a built-in HD camera and night vision technology, this video door phone gives you a clear view of your visitor, day and night. VDP-A1 video door phone can also expand its possibilities of applications. VDP-A1 works wirelessly via a Wi-Fi network. The camera provides exceptional image quality by supporting 720p (1280 x 720) resolution as well as dual video streams and compression formats H.264 and MJPEG with frame rates up to 30 fps.