a high-frequency, contactless card that operates at 13.56 MHz and is compliant with the ISO 14443 A standard. It features advanced security with a three-step authentication process, an anti-collision algorithm for multiple card use, and cyclic redundancy checks (CRC) for error detection, making it reliable for applications like public transport ticketing. These cards have a reading distance of up to 10 cm and come in various materials like PVC, PETG, and wood.