RFID Rewritable Ring RFID Dual Frequency Ring Black US#6 | RFID Ring, 13.56MHz CUID&125KHz T5577 Access Key Cards in One Ring, Ceramic Smart Finger Ring Wear for Men or Women

Dual Chip Design: This rewritable RFID ring features both ID T5577 and IC Cuid chips. The T5577 chip is positioned where the ring size is indicated, and the Cuid chip is on the opposite side. It can be utilized to duplicate a wide range of commonly used cards with ease. Wear this smart ring and never be concerned about forgetting your keys. Multiple Sizes: Offered in sizes based on American standards: US#6, #7, #8, #9, #10, #11, #12, #13, providing more options to fit your fingers. (Notice: Please verify how to measure your finger size before purchasing). Robust Build: The smart ring is constructed from zirconia ceramic, ensuring it is durable and resistant to damage even if dropped. It is waterproof and has a stylish appearance. Suitable for outdoor activities like running and swimming. Convenient Operation: Simply tap the ring to the reader for immediate access. Its elegant gloss and lightweight nature make it a perfect selection for everyday wear, ideal for offices, homes, schools, and more. Important Note: The RFID ring is blank and cannot be used without first being written or copied. Please ensure you possess a corresponding RFID reader/writer to clone data before purchasing