... the heating vest, heating kneepad, heating soles, heating blanket, etc. battery heated seat cushion1) Built-in far infrared heated fiber cloth2 ... ,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 ...