機器
banking
bill
business
buy
cashier
cell
cellphone
checkout
closeup
communication
consumer
contact
contactless
credit
customer
device
digital
electronic
female
field
finance
financial
hand
mobile
mobilephone
money
near
nfc
pay
paying
payment
people
person
phone
purchase
reader
retail
rfid
shop
smart
smartphone
store
technology
terminal
transaction
transfer
wallet
wireless
woman