Why are supermarkets using electronic shelf labels? What role does it play in the supermarket? In the future, is it a necessary tool for supermarkets?

This year's World Earth Day is themed around "Invest In Our Planet", advocating green and low-carbon living and improving the overall environment of the planet.

How long does the Earth have left to exist? If we calculate that the Earth has 7.5 billion years of life left, it is 40 years old today. With the increasing depletion of non-renewable resources on the earth and the gradual deterioration of the soil and marine environment, the survival of human beings is threatened.

According to statistics, 50-70% of sales in national chains are directly generated by promotional merchandise. Promotions, however, are limited by the tedious nature of coordinating a sale. Price tags have to be adjusted at the open and close of a sale.