Available on Amazon. Audio works. Uses RTSP, H264/H265.
This camera comes with a default IP address of 192.168.0.123.
Default login: admin | 12456
No need to install any of the included software.
Source Type: FFMPEG
Remote Protocol: TCP
Stream URL: rtsp://0.0.0.0/live/mpeg4
There are some cloud options in the camera UI, probably a good idea to disable them all.