Using a barcode scanner to process point of sale orders improves your efficiency and helps you to save time for you and your customers.
To use a barcode scanner, go to :menuselection:`Point of Sale --> Configuration --> Point of sale` and select your PoS interface.
Under the IoT Box / Hardware category, you will find Barcode Scanner select it.
Add barcodes to product
Go to :menuselection:`Point of Sale --> Catalog --> Products` and select a product.
Under the general information tab, you can find a barcode field where you can input any barcode.
From your PoS interface, scan any barcode with your barcode scanner. The product will be added, you can scan the same product to add it multiple times or change the quantity manually on the screen.