For me, bluetooth barcode scanner is such a convenience thing to use. Just like when there are some heavy stuff placed at the bottom of the cart, a buyer doesn’t need to lift it up at the counter for paying it. Mostly the cashier will just get near the heavy goods and then scan it. So, thankful that most of the stores here in my place are using this type of barcode scanner. Hope all of the stores will use these because it will help a lot with all shoppers.