The trademark in the scissors area is marked with a magnetic stripe to prevent theft. If you buy it in Decathlon, the cashier will clean the magnetic stripe when you pay. If you don't scan, the instrument on the door will sound an alarm!

Wear clothes at home if they fit, and cut them if you don't want to return them. If you are going to return it, don't cut it off.

Extended data:

The working principle of radio frequency identification (RFID): after the tag enters the magnetic field, it receives the radio frequency signal sent by the reader, sends the product information stored in the chip through the energy obtained by the induced current, or actively sends the signal of a certain frequency; The reader reads and decodes the information and sends it to the central information system for relevant data processing.

Baidu encyclopedia -rfid tag