Ключевые слова: academic, audience, background, blur, business, businessman, center, coaching, conference, conference hall, congress, convention, convention center, corporate, education, educator, entrepreneur, entrepreneurship, equipment, event, executive, expert, explaining, information, institute, lecture, light, listeners, man, meeting, mic, microphone, participants, people, podium, presentation, professional, public, room, seminar, sound, speaker, stage, summit, symposium, talk, technology, training, university, workshop,