what should I do if my mobile phone can't get a Bluetooth link? In this case, the Bluetooth connection of the quick-brush pos machine can't be connected, and then try to connect again after deleting the device; Or the Bluetooth pos machine is out of power, so it is recommended to charge it. If it still doesn't work, please contact the official customer service of Lishi, and they will answer your questions in time.

1. pos machine is a terminal reader equipped with barcode or ocr code technology, which has the function of cash or barter line teller. Its main task is to provide data services and management functions for commodity and media transactions, and to carry out non-cash settlement.

2. It can be installed in the special merchants and acceptance outlets of credit cards and connected with computers to form a network, so that electronic funds can be automatically transferred. It has the functions of supporting consumption, pre-authorization, balance inquiry and transfer, and it is safe, fast and reliable to use. It is difficult to obtain basic business information in bulk transactions, and the introduction of pos system is mainly to solve the blind spot of retail information management. Pos machines are suitable for large and medium-sized supermarkets, chain stores, hypermarkets, large and medium-sized hotels and all high-level management retail enterprises.

3. The basic principle of pos system is to create the commodity data in the computer file first, and then connect it to the computer cash register

structure. The

barcode on the commodity can be directly read in through the optical reading device on the cash register equipment, and then the commodity information can be displayed immediately to speed up the cash register and correct it.