These normal-looking cards are marked with special invisible ink, which are unique to their marked cards readers.
You can see the marks on the deck of the cards while wearing the infrared contact lenses.
This poker analyzer can tell you the best hand, the first and the second best hands and even all ranks of the players in the game within 0.1 send with 100% accuracy rate.
You can install the scanning camera into anywhere you want, such as phone, watch, lighter and so on. It has good concealment.