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1. This type of heating insole does not have a battery, can not save electricity or heat, insole is to be energized to heat, power off cooling, outdoor can also be used with charging treasure power supply heating, make sure that the charging treasure output is 5V/2A the above. (This product does not contain charging treasure)
2. Three power supply heating methods:
1) Adapter plugged in
2) USB connected to the computer
3) Charging treasure heating (charging treasure power 5V/2A or more)
3. Washable and more user-friendly.
Precautions for use
1. Unplug the power supply when not in use to avoid prolonged heating.
2. Old people and children need to be used under supervision.
3. It is strictly forbidden to wear electric shoes to do strenuous exercise to protect the heating chips.