E-tag function:

1/ Remote adjustment of price information

2/ Realize supermarket self-service payment mode (without cashier queue)

3/ Realize automatic update of price information (according to production date, inventory data, etc.)

4/ Increase the efficiency of information transfer between production and sales

1.Integrate traffic collection (add button or ultrasonic sensor) 

2.Integrated survey information collection (Add selection button) 

3.Can scan code promotions and other activities (through dynamic scan QR code)