An NFC reader is a device that uses Near Field Communication technology to wirelessly exchange data with other NFC-enabled devices. It allows users to make payments, transfer files, or access information simply by bringing their devices close together, typically within a few centimeters. These readers are commonly found in smartphones, payment terminals, and access control systems. They facilitate quick and secure transactions, making everyday tasks more convenient. As NFC technology continues to evolve, its applications are expanding in various industries, including retail, transportation, and healthcare.