Bullet Points:1Metal Fiber Heating WireHeated Vest has built-in metal fiber heating wire, which is soft and tough and can be bent at will. When the temperature reaches 65C, the system will automatically stop heating, very smart.2Eight-zone Heating DesignHeated Jackets are designed with eight-zone heating, which is very intelligent. It can effectively resist the cold wind, and relieve the cold in the abdomen, back, waist and neck, bringing you comfort and warmth.3Long Power Supply TimeElectric Heated Vests have a long power supply time. It can last about 4-6 hours at high temperature; about 5-6 hours at medium temperature; about 6-7 hours at low temperature. (calculated with a power bank of 10,000 mah (50w))4Three-gear AdjustmentUSB Electric Heating Vests have three adjustable gears, and you can easily adjust them to a suitable temperature to suit your needs.5Fast Heating SpeedAfter the Heating Vest is turned on and powered on, it provides a balanced heating temperature. It not only has a fast heating speed, but also can be folded, washable, resistant to high temperature, and resistant to pilling.Description:The metal fiber wire heats up; after the power is turned on, the heat temperature is evenly provided, not only the heating speed is fast, but also not afraid of folding, washing, high-temperature resistance, and resistance to pulling.Specifications:Name: Heated VestFabric: Shell fabric 100% polyesterShoulder: brown for PU leatherLining: 100% polyesterFilling: imitation memory silk pressed cottonPower output: 5V/2ASize: M~3XLColour: BlackHeating body: wire heatingHeater: eightFront two pieces: 2 abdominal piecesSix pieces on the back: 1 piece on the back of the neck + 3 pieces on the back + 2 pieces on the waistProduct list:1* Heated VestNotes:Due to the lighting effects and shooting angles, there is a color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.