Ключевые слова: app, application, background, black, blank, business, cell, cellular, communication, computer, connected, contraption, cyberspace, design, device, digital, display, electronic, empty, hold, holding, illustration, internet, isolated, listening, male, message, mobile, mobile phone, modern, multimedia, outdoor, people, person, phone, professional, screen, smart, smart devices, smartphone, tablet, technology, telephone, touch, touch screen, two, using, white, wireless,