ISO 14443A NFC tags are designed to operate at close range and are compliant with the ISO/IEC 14443 Type A standard. They are commonly used for contactless communication applications such as access control, secure identification, mobile payments, and data exchange between NFC-enabled devices. These tags are typically embedded in cards, stickers, or key fobs and are powered by the electromagnetic field generated by an NFC reader or smartphone, enabling quick and convenient interactions without the need for a battery.