Features: 14443A/B,15693 protocol, 14443A/B is the principle of electromagnetic induction near-field coupling, the distance is close, but there are many encryption protocols, mainly used for identity recognition; 15693 protocol is the principle of electromagnetic induction near-far field coupling, the distance is relatively Far away, mainly disturbed by metal.

Application: Widely used in anti-counterfeiting traceability, high-frequency tags can be easily made into a card structure, typical applications include electronic identification, electronic tickets, and identification cards for campus cards and access control systems.