Ключевые слова: accessible, affordable, barcode, cashier, checkout, code, contactless, convenient, costeffective, customer, dependable, digital, easy, efficient, effortless, fast, hand, helpful, intuitive, mobile, modern, moneysaving, payment, phone, practical, purchase, qr, quick, reliable, retail, safe, scan, scancode, scanner, secure, shopping, simple, store, technology, timesaving, transaction, trustworthy, useful, userfriendly, valuable, wireless,