What handheld devices existed in 1928?

Answer:
the western electric 34a carbon hearing was a hearing device developed in 1925. it weighed 2 pounds and was 7.4 inches long, however, so its highly unlikely that any woman or man in drag could hold that to their ear, or have a reason to talk into it, so its more likely that 'woman' was a time traveler.
First answer by ID1196632627. Last edit by ID1196632627. Question popularity: 1 [recommend question].