Ключевые слова: advertising, alert, alertness, amplify, announcement, attention, audio, background, bright, broadcast, broadcasting, campaign, clear, color, communication, copy, copy space, device, directional, electronics, equipment, event, influence, information, isolated, loud, marketing, megaphone, message, minimalistic, noise, pink, promotion, public, purple, simplicity, sound, space, speaker, speaking, vibrant, voice, volume,