It comes with a flat mount and angle mount.
Come with Ray instructions and also a QR code you can scan with your phone directing you to a YouTube video of all the different ways to install.
The night vision is very good.
Your phone rings and you answer (you can set to mute on answer or unmute on answer), you can pick watch the video and select a responds that’s preset “hello, please leave package at door” and other reply’s.
Note that my front door is about 30ft from my modem and 2walls so the wifi connection must be pretty good.