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Feature

With built-in micro heater chip, heat quickly and evenly, long service life.The insole is no charging function. The insole would be heated only when you connect the USB power. Heating Temperatureis about 40-45.
Allowing cleaning with water for recycled use, but keep the interface out of the water.
SIZE: Women 36-40,Men 39-43.Size numbers are set on the back of insoles, you can cut arbitrarily to fit your size.
One USB cable connects the laptop or computer to heat 1 pair of insoles at a time, keeping your feet warm all the time.
Can be used with computer or mobile power by USB wire.Very good accessory for computer workers on cold winters. Fit for all kinds of shoes.

Description

Specification:
Material: Short Plush + EVA
Type Options: Red (Women), Brown (Men)
Red (Women) Size: 36 - 41 (Free Cutting)
Brown (Men) Size: 39 - 44 (Free Cutting)
Heating Chip Length: Approx. 17 cm / 6.69 inch
USB Cable Length: Approx. 1.6 m / 5.24 feet
Weight: Approx. 108 g
Packing List:
1 x Pair of Heating Insoles
1 x 1.6 m USB Cable
Note:
It has warm function only if it is powered by connecting USB cable to the computer, laptop or other available appliances. Once power off, there will be no temperature.