USB Heated Shoe Insoles with Remote Control 3.7V 2100MA pads

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 temp