They are very comfortable. They deliver the view to your eyes by transforming ultrasonic reflective informations. Maybe you could trademark it Bateyears or whatever. That's Marketing's problem.
Anonymous B joined in and replied with this 3 weeks ago, 2 minutes later[^][v]#1,458,176
Too powerful. Eventually the police would have to have them to counter the criminals who have them and before you know it, popo is looking through your walls