What are QR Codes?
QR codes (QR for Quick Response) are 2D codes which contain information that can be read by a QR code reader. Readers can be downloaded to mobile devices with a camera and web capabilities. QR codes are often used to link the user to a web address, but can also contain phone numbers to make a phone call or send a SMS text message, or enter up to 250 characters of text on to your mobile device.