Ключевые слова: advertising, after, application, background, bar, barcode, card, code, commerce, contactless, customer, data, digital, display, ecommerce, electronic, hand, holding, id, identification, isolated, laptop, mobile, mockup, money, online, order, pay, payment, person, phone, price, qr, qrcode, quick, reader, receipt, retail, sales, scan, scan pay, scanner, shop, smart, smartphone, store, tag, technology, transaction, using,