NFC

Near Field Communication (NFC) is an international transmission standard based on RFID technology for the contactless exchange of data by electromagnetic induction using loosely coupled coils over short distances of a few centimeters and at a maximum data transmission rate of 424 kbps. 

Up to now, this technology has been used primarily in the micropayment sector - contactless payments of small amounts.

Quelle/Source: https://en.wikipedia.org/wiki/Near-field_communication