Rewritable Waterproof RFID Keychain Tags – T5577/EM4305 NFC Key Fobs
High-frequency 125KHz/13.56MHz RFID technology enables seamless rewritable data storage, compatible with T5577 and EM4305 chips for versatile use. Durable waterproof ABS casing protects internal components from moisture, dust, and daily wear, ensuring long-term reliability in harsh environments. Compact keychain design integrates smoothly with access control systems, inventory tracking, NFC payments, and smart device automation. Ultra-thin 216-size card format maintains functionality while minimizing bulk, ideal for key fobs, ID badges, or asset tagging. Precision laser-etched antenna and chip assembly guarantee stable signal transmission and fast read/write performance. Global wholesale pricing with bulk discounts available – the most cost-effective RFID solution for large-scale deployments.