Ключевые слова: advertise, advertisement, alert, announce, announcement, attention, audio, background, broadcast, broadcasting, bullhorn, call, closeup, communicate, communication, device, emergency, equipment, female, hand, information, leadership, loud, loudspeaker, megaphone, message, mint, news, noise, notice, portable, power, propaganda, protest, public, red, scream, shout, shouting, sound, space, speak, speech, talking, technology, top, voice, woman, yellow,