Specifications:
Volt: 5V/7.4V/12V chargeable battery
Three level Smart temperature control button
Size: OEM as request
Heating Material: enamelled alloy resistance wire
Plug: DC/USB plug, 35135,5521
Temperature: 0-60 degree centigrade
Application: Heating jacket, vest, belt, gloves, insoles, pets, cushion, car seat