Features: The Module is a high frequency reader and writer board that utilizes 13.56MHz RF technology, enabling card operations with simple command instructions. Featuring a highly integrated chip as the RF station, this module supports ISO15693 standards and includes built in functions such as automatic card detection, reading, writing, and balance inquiries. For developers and enthusiasts, this module is perfect for those look to integrate advanced capabilities into their projects or systems. Suitable for use in electronic devices, intelligent automation suites, and desktop card issuance systems, it offers applications across various fields. With its design, low power consumption, and customizable software features, the module is a essential tool for modern electronic solution. Specifications: Material: Plastic Working Frequency: 13.56khz Size: About. 5x5cm/1.97x1.97in Package Includes: 1pc Read Write Module note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.