It would be nice if there was an app that a could let a bunch of people tune in to an audio stream hosted by a phone within 30 meters. Then, a professor could lead walking lectures without having to turn around and shout.
This would also be useful for city tours, outdoor dance parties, and churches with hard-of-hearing parishoners.
This would also be useful for city tours, outdoor dance parties, and churches with hard-of-hearing parishoners.