Ключевые слова: adult, back view, black, caucasian, equipment, glass, guard, handsome, indoors, inscription, lettering, letters, male, man, office, people, person, portable, profession, professional occupation, protect, protection, rear view, safety, secure, security, selective focus, sentry, service, talk, talking, technology, transceiver, transmitter, uniform, walkietalkie, windows, wireless,