Ключевые слова: advertising, alert, announcement, arm, attention, background, bold, bright, broadcast, clean, color, communication, concept, energy, equipment, expression, gesture, hand, holding, human, information, isolated, loudspeaker, man, marketing, media, megaphone, message, minimal, noise, object, poster, promotion, public, shout, signal, sound, speaker, speech, talk, technology, vibrant, voice, volume, yellow,