Mobile payment systems facilitate customer transactions by allowing users to make purchases through their smartphones or other mobile devices. These systems utilize technologies like NFC (Near Field Communication) and QR codes to enable quick, secure transactions. Customers can link their credit or debit cards to mobile wallets, streamlining the checkout process and reducing the need for physical cash or cards. Such systems enhance the user experience by offering convenience, speed, and often additional features like loyalty rewards, contributing to increased consumer engagement and satisfaction.