The tags can store data ranging from 512 bytes to 4 megabytes depending on the type of merchant. The data stored in the tag is determined by the application of the system and the corresponding standards. For example, labels can provide product production, transportation, storage, and identify the identity of machines, animals, and individuals. These are similar to the information stored in the barcode. The tag can also be connected to a database to store product inventory number, current location, status, price, lot number information.Correspondingly, the RF tag can directly determine the meaning of the code without reading the database when reading the data.