Datasheet for NXP MIFARE Classic® EV1 4K RFID Silicone Wristband (Model: AZ-S70-SW)

This document provides a comprehensive technical datasheet for the Model AZ-S70-SW, a watch-style silicone wristband equipped with the NXP MIFARE Classic® EV1 4K RFID chip. The wristband operates at 13.56 MHz and adheres to the ISO/IEC 14443A standard. It features a 4KB EEPROM for multi-application data storage. The datasheet details the product's physical and electrical specifications, including its dimensions, material properties (waterproof, shockproof, high-temperature resistance), memory structure, and RF interface characteristics. This device is engineered for robust performance in applications such as public transport, secure access control, cashless vending, and customer loyalty systems. For commercial inquiries and complete product details, visit the official page at: https://rfidtag.com/product/nxp-mifare-classic-ev1-4k-rfid-silicone-wristband-s70/