10pcs MF Classic 1K RFID Fob 13.56mhz ISO14443A Key for Hotel Door Entry Access Control... (black)

["Product Introduction: Contactless smart key holder, built-in mf classic 1k chip, Material: Exterior quality PVC, waterproof, heat resistant, cold resistant, convenient to carry","Operating frequency: 13.56 mhz, protocol ISO 14443A","Applications: Multi-directional comprehensive applications such as schools, businesses, business organizations parking lot management, identity identification, gate control control, job reputation signing, dining in the dining hall, entertainment consumption, library management etc","Product Specifications: 10 pieces per pack"]