Ключевые слова: action, advertisement, ai, alert, announce, announcement, attention, background, bright, broadcast, bullhorn, business, casual, caution, color, communication, concept, design, empty, equipment, hand, holding, light, loud, loudspeaker, marketing, megaphone, message, modern, news, object, orange, people, promotion, public, shouting, sign, sound, speaker, speaking, speech, symbol, voice, website, woman, yellow,