Ключевые слова: advertise, alertness, amplifier, announce, at attention, audio equipment, backgrounds, brass instrument, broadcasting, bullhorn, cable, car horn, communication, control, danger, director, electrical equipment, electricity, electro pop, equipment, event, exploration, grainy, guidance, horned, hunting horn, letter, mega, megaphone, message, police, power, power line, power supply, protest, public speaker, render, report, riot, sayings, separating funnel, shout, shouting, sound, speaker, speech, talk, talking, trumpet, tube, volume, warning sign,