Safety & IntelligentOur heated vest designed with the latest carbon fiber and built-in reflective silver fabric for quick heat up. Help to promote blood circulation and relieves muscle pain in winter, ideal for people who always suffer from bone pain on cold or rainy days. Heated Coats with 3 Temperature ControlFast heating within 1-3 seconds, 11 Heating pads will warm you up .across core body areas to make you feel warm in 360. 3 Available settings can be adjusted temperature levels by the button LED lights, red- (50-65/149), white (40-55/131), blue- (30-45/113). Muti- Occation Is great for all kinds of winter sports or outdoor activities, like hunting, hiking, skiing , cycling, fishing, office. Compatible USB PoweredUSB plug is compatible with most power banks in the market , which enables quick smooth electric warmth without radiation, no harm to the human body. A 10000mAH fully charged power supply can keep heating for up to 8 hours (BATTERY NOT INCLUDED). Skin-Friendly & LightweightThis Heating Vest made of lightweight Carbon fibre, support hand/ machine wash. Comfortable and smooth to touch, warmth to last all winter without the bulk of heavy coat. It is a good gift for the elderly, families or friends.