Unlimited card usually refers to a card account issued by a bank. There is no limit to the transaction amount of the first-class card account, and the cardholder can make any transaction with the first-class card. However, an ID card user can only handle one first-class card account in a bank. On the other hand, both the second-class card account and the third-class card account have transaction limits. For example, the daily transaction limit of the second-class card is 1 10,000 yuan, and the annual cumulative transaction limit is 200,000 yuan. In addition, there are some unlimited credit cards exclusive to specific groups, such as doctors, lawyers, government officials and other job privilege cards or celebrity star exclusive cards. These specific groups usually have stable high income and good social status, so they can enjoy higher and more flexible credit card services.