Ключевые слова: amplifier, announce, announcement, attention, audio, background, blue, broadcast, bullhorn, command, communication, concept, conceptual, control, device, director, electric, electronic, event, funnel, girl, guide, horn, loud, loudspeaker, megaphone, message, metaphor, object, police, power, powerful, protest, public, retro, sky, speaker, speech, system, tour, trumpet, vertical, vintage, voice, volume, warning, white, wires, yell,