Ключевые слова: advertisement, announce, announcement, attention, audible, audio, background, broadcasting, bullhorn, business, communication, copy, copyspace, device, equipment, flat, hold, horn, lay, loud, loudspeaker, megaphone, message, mock, mockup, news, noise, proclaim, promotion, public, shout, shouting, sound, space, speak, speaking, speech, talking, text, top, view, voice, volume,