Intelligent Design: Our IC Card Door Key Fob includes smart technology with high-sensitivity induction, making it waterproof, shockproof and efficient. Engineered with a smart chip and premium copper wire, these cards allow for speedy interaction with smart locks that enhance security and efficiency. | Compatibility: This Door IC Card Kit is specially designed for Tuya TTlock IC Card systems. Able to be matched to numerous locks, these cards are the key to a seamless, secure access point for your smart locks, ensuring your property's protection. | Versatility: Spanning access control in residential areas to attendance systems at schools, parking lots, enterprises, and malls, our Proximity ID Card carries diverse applications. Its smart technology is adaptable to various access control systems, highlighting its wide-ranging functionality. | Enhance Security: With our Access Control Key Fob, enjoy an in door access efficiency and security. As a replacement for traditional keys or password systems, this tool brings increased convenience and security, ensuring smoother functioning of your access control management systems. | Specifications: This Contactless Key Fob is sized at 50x30mm and operates at a frequency of 13.56Mhz. Known for its compatibility with smart locks, it ensures that house or business access is always smoothly managed and controlled.