What was the technology the Smithsonian used for audio tours in 1980s?
July 3, 2017 7:23 AM Subscribe
As a child of Northern Virginia in the mid- to late- 1980s, I recall from many class and family trips to the Smithsonian the image of people carrying long white sticks with a telephone-like receiver on one end for audio tours. There were signs (with the symbol of the white stick) around the exhibits indicating where one could listen to audio about that exhibit. I think they were wireless, but I don't trust my flawed human memory. What was this technology? How did it work?