** Provides the function to read the QR code.
** This application provides information about the products unique QR code.
** Product that was registered through idwho App shows information to use QR code.
** QR code generated by this application need to add to the lock screen of Smartphone.
** If lost smartphone, the Finder reads the QR code on the lock screen and can be contact to the owner.
** Owner can leave a message on the memo of the lost smartphone in the www.idwho.net after login so that the Finder can see the message.