barcode

My brother and sister in law is handling my small store, but they don't have
barcode scanner to scan the item when the customer buy the products. That is the reason today why we are here in the city because I want to buy the barcode scanner for my little so they could easily identified the product without guessing the prices. I know they don't have any college level education, but they're very good in handling the business I have here for almost 2 years.