Ключевые слова: address, advertisement, advertising, alert, amplifier, announce, announcement, attention, audio, background, broadcasting, bullhorn, color, communicate, communication, copy, device, electronic, inform, leadership, loud, louder, loudhailer, loudspeaker, media, megaphone, message, news, nobody, noise, object, proclaim, propaganda, protest, purple, scream, shout, sound, space, speak, speaker, symbol, text, top, view, violet, voice, volume,