scanner

scanning

shop

shopping

beeping

buy

buying

bleeping

bleeps

beeps

cashier

interface

device

computer

counter

gadget

hi-tech

codes

signals

monitor

sci-fi

electronic

points

products

tones

items

technology

scan

sound

store

supermarket

game

paying

robotics

barcode

bar code

cash register

check out

checkout

digital

optical

payment

price

reading

purchase

reader

beep

bleep

hi tech

code

signal

sci fi

point

product

tone

item

pay

robotic