Ключевые слова: banking, bill, business, buy, card, cashier, cell, cellphone, checkout, commerce, communication, consumer, contact, contactless, credit, customer, device, digital, electronic, field, financial, girl, hand, machine, man, mobile, mobile phone, mobilephone, money, nfc, nfc technology, pay, paying, payment, person, phone, phone pay, pos terminal, purchase, retail, shop, smart, smartphone, store, technology, terminal, transaction, transfer, wallet, wireless,