QR Code is a two-dimensional barcode that is read by smartphones. It consists of information that can be grabbed from the transitory media and display on your mobile phone. It Requires over 4000 characters to be stored in a two-dimensional barcode. QR Codes can be used to show text to the recipient, to open a URL, to save a contact to an address book, or to write text messages. You may see QR Codes in magazine adverts, on billboards, web pages or even on someone’s t-shirt.