Near Field Communication (NFC) technology is a standards-based wireless communication technology that allows data to be exchanged between devices that are a few centimeters apart. NFC operates at 13.56 MHz and transfers data at up to 424K bit/scond. NFC tags consist of three elements. A chip, an antenna, and the inlay.The inlay is the plastic or paper backing, often adhesive, which supports the other two elements and allows you to stick the NFC Tag to a wall or poster.