Features:
High conversion efficiency, energy saving, the average hour with one degree of electricity.
Easy to cut to the size you need.
Applicable to various shoe types.
Make your foot more comfortable and warm.

Removable design, convenient and clean.
USB charger,connected to PC, laptop,charger, keep your feet warm indoor.

Specifications:
Color: Black
Material: Carbon Fiber
Function: Foot Warmer
Applicable Gender: Unisex
Maximum Voltage: 4.5V
Heating Range: Within 35 Shoe Line
Insole Thickness: 4mm / 0.20'' (appr.)

Package Includes:
1 Pair X Heated Insoles

1 X USB Cable

Three Kinds of Heating Methods

01 / Portable Charger

02 / Computer

03 / Plug