4.5V Battery Electric Foot Heated Shoe Boot Insoles Heater Sock Snow Feet Warmer Black_One size

Description

Battery compartment designed line PCB, contained three ICs, for power, intelligent battery recycling and independent line control IC battery safety. These insoles contain 2 straps that can be tied at the feet of the Achilles tendon, and the battery box can be placed on the outside of the wearer's bag, easy to carry. Insoles with battery pack included in mesh fabric bag that securely attached around the leg with strap. Easy to cut.