機器
bank
business
buy
checkout
client
communication
concept
contactless
cropped
device
digital
electronic
female
finance
hand
hold
horizontal
illuminated
indoor
mobile
mobile phone
money
online
pay
payment
people
phone
purchase
reader
retail
scan
shop
side view
smart
smartphone
store
system
technology
terminal
transaction
transfer
unrecognizable
using
waiter
wireless
woman