This RFID ring features a durable ceramic shell paired with either a T5577 or UID chip, offering dual-frequency operation at 125KHz and 13.56MHz. The black ceramic casing provides a sleek, scratch-resistant surface that withstands daily wear, making it suitable for both men and women. Equipped with a rewritable chip, the ring allows users to program or clone access credentials, garage codes, or other contactless authentication data as needed. The 16mm inner diameter ensures a comfortable fit for most finger sizes, while the lightweight ceramic material avoids adding bulk during prolonged use. The ring’s construction emphasizes long-term reliability: the chip is securely embedded within the ceramic body, protecting it from impact and moisture. Unlike traditional key fobs or cards, this wearable form factor eliminates the need to carry separate tokens, streamlining everyday entry. The dual-frequency support increases compatibility with a wide range of readers, from legacy 125KHz systems to modern 13.56MHz infrastructure. Each unit undergoes basic functional checks to ensure stable reading performance across varied environments. For practical use, the ring requires no battery or maintenance—it passively responds when brought near a compatible reader. Programming is done via a separate writer (not included), allowing users to customize the stored ID. The black finish resists smudges and discoloration, maintaining a clean appearance over time. Given its compact size and robust build, this RFID ring serves as a convenient alternative for professionals, students, or anyone seeking hands-free access solutions. The material choice delivers a balance of toughness and subtle aesthetics, as ceramic does not interfere with signal transmission. The chip’s rewrite capability supports repeated updates without degradation, making it a reusable investment. While primarily designed for access control, it can also be applied to attendance systems, loyalty programs, or other RFID-based identification tasks. The ring’s simple, unisex design fits seamlessly into daily attire, whether worn alone or stacked with other jewelry. At its price point, this ring offers a practical entry into wearable RFID technology without compromising core functionality. The ceramic body provides a premium feel uncommon in low-cost alternatives, while the dual-frequency chip ensures broad reader compatibility. Users upgrading from plastic fobs will appreciate the increased durability and reduced likelihood of loss.

This ring delivers dependable performance for those needing a compact, rewritable RFID token.