Ключевые слова: advertisement, amplifier, announce, announcement, arm, attention, audio, broadcasting, bullhorn, business, closeup, color wall, communicate, communication, crazy music, device, discount, electronic, equipment, fun, hand, hot, hurry up, loud, loudspeaker, management, megaphone, message, news, nobody, object, people person, portable, proclaim, public, rebate, red background, refer, sale, scream, shout, shouting, sound, speak, speaker, technology, time, voice, volume,