Ключевые слова: advertisement, advertising, alert, amplifier, announce, announcement, arm, attention, audio, background, blue, broadcasting, bullhorn, communicate, communication, copy, device, equipment, female, hand, hispanic, holding, horn, inform, isolated, leadership, loud, loudspeaker, media, megaphone, message, modern, news, noise, person, proclaim, promotion, propaganda, protest, scream, shout, sound, space, speak, speaker, text, voice, volume, warning, woman,