Yes, you'll find inside pictures here: https://www.blackjacktheforum.com/album.php?albumid=8

But, I'm not understanding. A card will not be replayed soon. The device does not use a slot until it contains a certain number of cards. If they are trying to track the cards by sound, that would be incredibly difficult. Also, the machine could easily be programmed to avoid this, although I tend to doubt they would have done this. .