Our blue standard MIFARE tokens with clip operate at a high-frequency of 13.56MHz, providing top-notch security for access control. These high-frequency tokens are perfect for replacing traditional mechanical keys and are compatible with PAC High-frequency, Multi-Technology, and Architect readers. With a lifetime warranty against electronic failure, our tokens offer peace of mind and convenience for users, easily attachable to keyrings and lanyards for easy access.High-frequency operation at 13.56MHzCompatible with PAC High-frequency, Multi-Technology, and Architect readersLifetime warranty against electronic failure