Intelligent Heating: 4 large area heating elements, far infrared heat, rapid heating, the maximum temperature can reach 65C.(Excluding power supply) 3 Speed Control: Rechargeable intelligent dual control; zoned heating temperature control; safe low pressure; separate temperature control; one button temperature control; three levels adjustment,the red light is continuous high temperature heating, the white is continuous medium temperature heating, and the blue is continuous low temperature heating. Materials: Heated Gilet are made of Memory Cloth, and the internal heating parts are made of spandex, very soft and no radiation.It is very easy to pull and is not prone to breakage. Washable Vest: No fear of tearing and washing for a long time; easy to clean; direct washing; Pay attention that please take out the power bank before washing. Put the USB interface back into the pocket and pull the zipper, please use it again to ensure dry and then use.(Machine wash in laundry bag) Applicable Sports: Camping, skateboarding, self-driving, rock climbing, cycling, travel, diving, daily warm wear, etc.The inner heating piece adopts carbon fiber wire, no radiation, stable heat generation and long service life.