Carbon fiber heating conductor, and energy saving,Heating up to 8 hoursSoftness index: softerSnowman power supply: charging or mobile phone chargerVoltage: 5V/USB interfaceUSB charger. Mobile phone, charging , computer... can supply power4. Click to switch the gear position, the third gear cycle, long press 2 seconds to shut down.High Quality And 100% Brand new.Number of floors: three Fabric Name: PolyesterPower bank: 8000MAHNote: Goods does not contain mobile power!2. Mid-range, LED display blue, use time 4 hours, about 55 degrees Celsius, output power 70%;Waterproof rating: washableMain fabric composition: polyester fiber (polyester)Lining Ingredients: Polyester (Polyester)The weight of the product is about 420g light as feathers, and the inner clamp is polyester and cotton to ensure that the temperature will not be lost.Full body and washable.1X Heating VestWarm, Breathable, Wear-, Ultra-light, Anti-static, -proof.Power supply: 5V. 2AThickness: quilted3 file temperature control adjustment. What temperature do you want.1. After the thermostat is connected to the power supply (battery), the red, blue and green lights flash once,press the button for 2 seconds to turn on, enter the preheat mode, the LED displays red, with breath flash,high-end output, output power 100%, about 65 Celsius, 3 hours of use, automatically jump to mid-range after 5 minutes of heating;3. Low-end, LED display green, use time 8 hours, about 45 degrees Celsius, output power 40%;