Ключевые слова: business, buying, capture, cell, check, code, coding, concept, customer, data, device, digital, display, electronic, equipment, examining, hand, holding, id, identification, information, internet, label, mobile, mobile phone, mobility, phone, price, product, qr, qr code, qrcode, reader, retail, sale, scan, scanner, scanning, screen, shopping, smart, smart phone, smartphone, store, technology, telephone,