Our key rings, as poker scanners, are available in different types. They have been installed with a poker camera lens inside, which is completely concealable and almost impossible to be discovered. The poker camera lens is capable of first scanning edge marked cards quickly, then collecting the cards’ information accurately, and last transferring the collected data to your poker analyzer immediately, no matter it’s PK King, CVK or AKK series. In order for the poker camera lens to work efficiently, you normally need to keep the key ring 20 to 40cm from edge marked cards. Its scanning distance can also be customized according to your own needs.