Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1.57 in) or less.^[1] NFC offers a low-speed connection through a simple setup that can be used to bootstrap more capable wireless connections.^[2] Like other "proximity card" technologies, NFC is based on inductive coupling between two so-called antennas present on NFC-enabled devices—for example a smartphone and a printer—communicating in one or both directions - Source Wikipedia