Comment by brico

They ask it because they have a cool product but don't know how to use it. I doubt it will be used the way they promote it, this is cool stuff you come up with when you are brainstorming with some friends + beer but when you think about it, it doesn't improve your life, it adds noise.

In different areas however it could be a big improvement, if you are repairing stuff with no hands free in a dimly lit area and you need info from a manual or you want others to see what you see and help you.