A Quick Response Code, or QR Code, is a two-dimensional barcode that can store information in a compact format. In the case of cryptocurrency transactions, QR Codes are commonly used to facilitate payments and transfers.By scanning a QR Code with a smartphone or camera, users can quickly retrieve the associated wallet address. This eliminates the need to manually enter long alphanumeric strings, reducing the chances of errors and making transactions faster and more convenient.QR Codes can also contain other information, such as transaction amounts or payment details. This allows for a seamless payment experience, especially in retail settings where quick transactions are essential.Furthermore, QR Codes enhance security by allowing users to send or receive funds without exposing their private information. Overall, they play a significant role in simplifying the process of buying, selling, and transferring cryptocurrencies.