Contactless

[Agnes]

relating to the use of wireless technology to make a payment using a credit card or debit card , or a mobile phone:

[Jason Yan]

used to describe bank cards, identity cards , etc. that can operate by being put close to the machine that uses them, and that do not have to be put into the machine:

[Tina]

Denoting a smart card that uses radio signals to provide a wireless connection to a card reader, so that no physical contact is necessary.