Ключевые слова: antenna, background, black, blue, call, communication, connection, control, copy, device, digital, distance, electronic, emergency, equipment, flat, frequency, guard, job, lay, light, military, mobile, object, officer, police, portable, protection, radio, receiver, safety, security, service, space, speaker, system, talk, talkies, tech, technology, text, top, transceiver, transmitter, two, view, walkie, walkietalkie, wave, wireless,