機器
banking
bill
business
buy
card
cashier
cell
cellphone
checkout
commerce
communication
consumer
contact
contactless
credit
customer
device
digital
electronic
field
financial
girl
hand
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