rfid applications

Village there is a supermarket in the new opened, our family went to the supermarket, the supermarket of the person very much, because a lot of things in the supermarket are doing activities are very cheap, my son also busy, as he picked out the yogurt, jelly, chips and other snacks, we bought home some homely essential supplies, soon time shopping cart filled with full, although there are too many people but we found that when bill didn’t have a lot of people line up, when I was also very strange the husband told me that in the supermarket with a very advanced rfid applications, also called the rfid applications is developed in the company, they had recently been applied to the market?