Loop Concept Mobile Phone for the Blind

This is the Loop, a mobile phone concept in development by Autodesk and LG, and made for the blind.

Apparently, you wear it on a clip to be put on your clothing, and get info on the OLED display that apparently works via Braille, somehow.

I’m not certain why the visually impaired would need something like this, except perhaps to dial a number. I know that the buttons on my phone don’t have Braille, but they have a standard order on the phone.