Ключевые слова: address, advertisement, advertising, amplifier, announce, announcement, attention, audio, background, broadcasting, bullhorn, call, classic, color, communicate, communication, concept, electric, electrical equipment, electronic, equipment, horizontal, horn, illustration, loud, loudspeaker, megaphone, message, news, object, plastic, power, powerful, public, realistic, scream, screaming, shouting, sign, single, single object, sound, speak, speaker, speech, system, talk, voice, volume, word,