CCTV Solutions have opened a completely new world of observation which is not restricted to security purposes.
If you employ a premises that you just need to safeguard then you may consider an invisible
computer controlled surveillance camera system.
The 4thstep is optional and it also does ask in case you want a
wired or Wi - Fi connection.

The thing about wifi cameras is that they may be cable-free.

xx (xx being numerous 0-255 but not exactly the same as that
in the camera.