Ключевые слова: adult, adults only, black color, business, casual clothing, caucasian ethnicity, closeup, color image, communication, connection, copy space, elegance, equipment, fashion, gray hair, holding, human finger, human hand, indoors, isolated, lifestyles, looking, males, mature adult, men, mobile phone, mobility, modern, one man only, one person, only men, part of, people, portable information device, portrait, real people, senior adult, smart phone, smart watch, smartwatch, studio shot, technology, telephone, touching, watch, wireless technology, wrist, wristband, wristwatch,