Feature:1. 1. 8-Zone heating: Including abdomen*2, neck*1, shoulder*2, back*1, waist*2, 8-zone heating, one-key heating, three-gear temperature control, intelligent heating, suitable for people who are afraid of cold in winter . Fully heated, no longer afraid of cold in winter.2. 2. 3 Gear temperature: Energy saving gear: 25 (red light), comfortable gear: 35 (white light), warm gear: 45 (blue light), you can choose the appropriate temperature gear according to your needs and environment .3. 3. Safe and energy-saving: Using 5V low voltage, no danger to human body; using carbon fiber silk material, infrared heating, no harmful radiation, soft material, stable performance, environmental protection, energy saving, safe and reliable.4. 4. Washable: It supports water washing, and the power interface is insulated and waterproof.5. 5. Specification:Colour: BlackFabric: NylonLining: polyester fiberFilling: cottonVoltage: 5V, low voltage, safe and reliable3 Gear temperature: energy saving gear: 25 (red light), comfortable gear: 35 (white light), warm gear: 45 (blue light)Applicable season: winterHeating material: carbon fiber silkHeating area: abdomen*2, neck*1, shoulder*2, back*1, waist*2, eight zones heatingWashable: Yes, the power interface has been insulated and waterproofPackage List:1pcs Heating jacketNote:It needs to be used with a power bank, which is not included in the package. It uses a USB interface to keep you warm when you go out.