LICAEVEY Ceramic NFC Smart Ring for Access Control and Attendance Systems, Aqueous Contactless RFID Men Women, Compatible with Android Devices (Size #10)

Advanced NFC Technology Embedded: Experience seamless contactless interactions with our upgraded NFC smart ring featuring NTAG215 IC chip and 13.56MHz frequency. Supports ISO 14443A/B protocols for reliable 3cm+ read range, ideal for access control systems and digital business card sharing across iOS/Android platforms. Professional-Grade Security Solution: This multifunctional RFID ring serves as corporate attendance tracker, encrypted access key, and EV/municipal card replacement. The 360° antenna design ensures stable signal transmission for office security systems, warehouse management, and smart device pairing. Premium Ceramic Construction: Crafted from aerospace-grade zirconia ceramic, this durable smart finger ring combines anti-scratch polish with shock absorption. material maintains glossy finish through daily wear while remaining lightweight (19.8mm inner diameter). All-Environment Performance: Engineered with IP68 water proof rating and -40°F to 300°F temperature. The chip withstands 100,000+ read/write cycles, making this NFC access control ring suitable for construction sites, laboratories, and outdoor facilities. Zero-Maintenance Convenience: Operates without batteries or charging. Simply tap to activate door locks, share info, or authenticate devices. Includes universal size adjustment guide for ideal fit on any finger position.