Rechargeable Electric Heating Insole Wireless Remote Control Smart Thermal Insole,Size:Medium(34-40 Size)

1. Material: plastic + carbon fiber
2. Voltage: 3.0V-4.2V
3. Battery capacity: 2100mAh
4. Input: AC/100-240V 40-60Hz
5. Output: DC/4.2V-5V 500x2
6. Use time:
High temperature: 55 degrees, use time: 4 hours
Medium temperature: 50 degrees, use time 6 hours
Low temperature: 40 degrees, use time 10 hours
7. Improve the coldness of the feet, the carbon fiber material heats up, effectively stimulates the blood circulation of the feet, and helps resist cold weather
8. Fast charging and long use time, charging for 4 hours and using for 10 hours
Suitable for people working outdoors, essential for travel in severe winter, elderly, people who are afraid of cold

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