Ключевые слова: alert, announce, announcement, art, audio, background, blue, bright, broadcast, broadcasting, bullhorn, color, colorful, communicate, communication, concept, contour, design, equipment, flat, glowing, gradient, horn, icon, illustration, isolated, light, line, linear, lineart, loud, loudspeaker, megaphone, message, neon, object, outline, public, scream, shout, sign, sound, speak, speaker, speech, symbol, vhs, voice, volume,