Ключевые слова: advertisement, advertising, alert, amplifier, announce, announcement, attention, attention please, attract attention, background, breaking news, broadcast, bubble, bubble speech, business, communicate, concept, emergency, flat, icon, illustration, important, info, infographic, information, isolated, loud, loudspeaker, megaphone, message, news, note, notify, place, please, poster, promotion, propaganda, public, sale, shout, speak, speaker, speech, text, urgent, voice, warning, web,