Detailed Product Description

1) Built-in far infrared heated fiber cloth

2) Built-in storing heating material.
3) It can be used on the stadium,campaing,fishing,hunting,and anywhere you like. It is no need the battery.
4>It is only 0.8kg,can be take any where easy.
 5>12V, using car cigarette lighter as the charger, charging around 20 minutes to store the heat, and than it can be lasted  heated for two to four hours.