Contactless credit cards are a type of payment card that allows users to make transactions without physically inserting or swiping the card. Instead, these cards use radio frequency identification (RFID) or near-field communication (NFC) technology to transmit payment information when held near a compatible payment terminal. This makes transactions faster and more convenient, especially for small purchases. To use a contactless credit card, simply tap it on the payment terminal, and the transaction is completed in seconds. Most contactless cards have a limit for transactions without requiring a PIN or signature, enhancing security while maintaining ease of use.