This NFC ring, made from durable Silicone/Ceramic/Steel/Epoxy materials, supports multiple functions like door key access, information sharing, and access control. It operates at 13.56 MHz frequency with ISO 14443A protocol, ensuring reliable performance. Waterproof and weatherproof design enhances usability in various environments. Customization options include logo and graphic personalization. Certified with CE, it ensures compliance with EU safety standards, providing market access assurance.