- Type Card: MF 4K chip with high capacity for efficient data storage and retrieval. - Durable Material: Made from ABS, these key rings are waterproof and drop-resistant, ensuring long-lasting performance. Their robust design prevents damage from being crushed in your bag, making them ideal for everyday use. - Key Features: - Supports both reading and writing operations. - Operating frequency of 13.56 MHz ensures fast and reliable communication. - Compatible with ISO14443A communication protocol for seamless integration with various systems. - Package Includes: A convenient pack of 10 blue rewritable RFID 13.56 MHz MF ClassOC 4K key rings, providing you with multiple options for your projects. - Practical Applications: - Perfect for access control systems, allowing easy and secure entry to buildings or restricted areas. - Ideal for inventory management, enabling quick tracking and updating of items in warehouses or retail settings. - Great for event management, facilitating efficient check-ins and attendee tracking with ease. These RFID key rings stand out due to their combination of high capacity, durability, and practical applications, making them an essential tool for both personal and professional use.