It may be overloaded, or the switch may have bad contact and generate heat, and the ambient temperature may be too high. The Jiaoxia smart heating scarf is both a warm weapon and a tool for concave styling in winter. Jiaoxia’s heating scarf breaks through the traditional scarf design and uses its patented graphene constant temperature heating sheet and intelligent heating system on the back of the neck. , and comes with a compact power bank.