Assertion: electric megaphone | /r/CapableOf | use folded horn
Facets:
Source sentences:
text: Since the 1960s the voice-powered acoustic megaphone described above has been replaced by the electric megaphone, which uses electric power and a folded horn to amplify the voice.
text: Since the 1960s the voice-powered acoustic megaphone described above has been replaced by the electric megaphone, which uses electric power and a folded horn to amplify the voice.