Ключевые слова: access, application, apps, business, buy, cell, cellular, checkout, commerce, connection, contactless, control, design, device, e commerce, finance, flat, illustration, internet, key, market, marketing, micro, mobile, monitor, nfc, online, paying, payment, paypass, phone, purchase, screen, secure, security, service, shopping, smart, smartphone, store, surveillance, symbol, tag, tap, technology, telephone, transfer, web, wireless,