NFC Tag

An NFC (Near Field Communication) tag is a small, unpowered chip that can transmit data to a compatible smartphone or device when held within a few centimeters. In accessibility contexts, NFC tags are used in museums, galleries, and public spaces to provide on-demand information to blind and low-vision visitors—tapping a phone against a tagged object or label can trigger audio descriptions, open web pages with accessible content, or launch guided experiences. While NFC tags are inexpensive and require no battery, their use in accessibility applications can be limited by the need for users to locate the tag precisely and by inconsistent triggering in noisy or crowded environments.