Open this link on a Phone - QR Code Feature in SharePoint 2016

SharePoint 2016 introduces a new feature to open links on your phone or tablet using QR codes. Here is how this feature works:

• Go to any of your SharePoint 2016 library such as document library. From the document's context menu, click on the tiny phone icon.
  
• This takes you to a page with QR code generated for the document URL. By default, every document is assigned with a Unique QR code.
• From your phone, use QR reader app to read the QR code and navigate to the document URL. This makes easier to share documents on mobile devices.