Ключевые слова: antenna, background, bar, business, button, cell, charge, communication, computer, concept, connect, connection, design, device, digital, element, frequency, gadget, graphic, gsm, icon, illustration, indicate, indicator, information, interface, internet, isolated, level, low, mobile, network, online, phone, public, router, shapes, sign, signal, smart, smartphone, status, strength, symbol, technology, web, wifi, wireless,