A wireless credit card terminal works the same as a wired terminal, but with the added freedom to accept credit card payments in non-traditional locations.

A credit card terminal, also known as an payment terminal or EFTPOS terminal, is a type of a point of sale (POS) terminal that a merchant can use to perform transactions with a credit card. It interfaces with payment cards to make electronic funds transfers.

These terminals protect the merchant, because if the customer attempts to use a card that is expired, stolen or damaged, the payment will be denied and the merchant will avoid giving away their products for an invalid card.