Ключевые слова: advertisement, bar code, bar code reader, black, blue tone, camera, caucasian, closeup, code, coding, computer language, computer software, contemporary, data, electrical equipment, focus on foreground, full frame, holding, human finger, human hand, information medium, internet, label, lifestyles, mobile phone, monochrome, photography themes, qr, qr code, quick, response, selective focus, smart phone, symbol, technology, telephone, touching, white, wireless technology,