Intelligent Card: Highly sensitive induction, waterproof, strong, and shockproof. Made of ABS eco friendly material for safety and durability. Contains smart chip and premium copper wire for sensitive induction. 20pcs ic cards 13.56mhz sensitive intelligent proximity id card contactless key fob for door entry access control system. | For Tuya TTlock IC Card: Compatible with multiple locks, each card can be matched with multiple locks. Please note that remote keys can only be used for smart locks that support IC card function. Keyless entry keyfob ic cards for smart door lock, 13.56mhz rfid key fob proximity ic card token tag for electronic smart door lock. | Smart Access Control: Integrated with smart technology, allowing interaction with access control systems for management and control. Features quick, , and convenient access, replacing traditional keys or password systems to enhance efficiency and security. Smart door lock ic card, smart door lock key, rfid card can add smart card keyless entry smart card. | Versatile Application: Widely used in residential areas, attendance systems, parking lots, enterprises, schools, malls, and more. An essential component of modern access control management systems. IC cards for smart door lock, 13.56mhz key fobs rfid card for ttlock smart deadbolt, keyless contactless entry key fob. | Enhanced Security: Improves door access efficiency, increases safety, and convenience. Size is 50x30mm. Frequency is 13.56Mhz. Compatible with smart locks. ICcards for smart door lock, 13.56mhz key fobs rfid card for ttlock smart deadbolt, keyless contactless entry key fob.