Overview:
1.This product is suitable for keeping warm in winter, preventing cold and preventing frostbite
2.There are yardage cutting lines on the sole surface, which can be cut to the desired size according to requirements, and the arch effect is more fit and comfortable
3.Designed with a temperature remote control device, different buttons on the remote control are used to control different operation modes, and the temperature can be controlled according to your own needs
4.Built-in lithium battery can be used when fully charged, no need to tie the battery, no need to connect to the power supply
5.It can release far-infrared rays when heated, promote blood circulation, prevent frostbite of the feet, relieve menstruation and invigorate blood, relieve fatigue, etc.

Insole use and operation:
1. Long press the switch for 3 seconds, the LED indicator lights up, and the red light turns on, indicating high temperature
2. Click again, the blue LED light is on, indicating medium temperature
3. Click again, the green LED lights up, indicating low temperature
4. Press the off button on the remote control to turn off
Remote control operation
1. Press the remote control H/ON to turn on the high temperature
2. Press the remote control M to turn on the medium temperature
3. Press the remote control L to turn on the low temperature
4. Press the off button on the remote control to turn off

Specification:
Material: EVA
Voltage: 3.7V
Battery capacity: 2100 mA
Charging voltage: 3V-5V
Power output efficiency: 98%
Overcharge protection voltage: 5V
Overload protection voltage: 2.85V
Charging method: USB charging
Size: 35-40, 41-46 (can be cut)
Temperature: The high-temperature range can reach 60-65℃, the use time is about 3-4 hours, the middle range can reach 50-55℃, the use time is about 4-5 hours, and the low range can reach 40-45℃, and the use time is about 6-7 hours.

Packing Content:
Heating insole*1 pair
Remote control *1
USB charging cable*1