How does the electronic price tag change the price?

It is realized through an electronic shelf labels system composed of a Bluetooth smart gateway and a cloud platform. The electronic price tag can be operated and changed on the cloud platform. The manager only needs to modify the price information of the product on the cloud platform, and the price change instruction can be issued to the store's Bluetooth gateway, and then the Bluetooth smart gateway issues the price change instruction of the cloud platform to the electronic price. After the price tag receives the price change instruction, it quickly refreshes the electronic screen, displays the latest product price information, and completes the intelligent price change.