The type of technology commonly used for contactless payment systems is Near Field Communication (NFC). This wireless communication technology enables data transfer between devices over short distances, typically less than 4 inches. Contactless payments allow consumers to tap their payment cards or smartphones on a compatible point-of-sale terminal without needing to swipe or insert anything. This method increases transaction speed and convenience while enhancing the user experience. As a result, NFC technology has become increasingly popular in retail environments, driving the adoption of digital wallets and mobile payment applications.