This is a real audio box which you can use it to enlarge the voice of the music or sound when you are
listening to music or watching TV or movie.
While it is also a camera to scan marked cards, so that poker analyzer will analyze the bar-code marking and tell you who is winner.
I think it is a good object to install the camera for poker analyzer, as no one will notice that your Hi-Fi is a poker cheat device, because of the distance to scan the marked playing cards is very long.
can put your Hi-Fi to the position about 4m to 5m from the poker table in your casino or poker club and put it above
about 1.2m of height from your poker table.