announcement, advertising, amplifier, arm, attention, background, blue, bullhorn, color, communication, device, electric, equipment, female, hand, holding, horn, information, loud, loudhailer, loudspeaker, media, megaphone, message, news, noise, person, portable, proclaim, promotion, propaganda, protest, public, shout, sound, speak, speaker, speech, talk, trumpet, voice, volume, warning, woman
