There is a CCTV camera in many casinos. The spy camera can be hidden inside the CCTV camera to help you win the poker games in an easier way.
This spy camera can read the back marked cards. The marks on the back of cards can not be read from other cheating devices and naked eyes but to be specially identified by this camera. Besides, there are many kinds of filters for the spy camera, and you can choose one you like.
The distance between this camera and the cards can be 2-3m. The power for this can be AC power, DC power or battery. Moreover, we can equip with a remote control to turn it on/off.