Usb Charging Smart Children Heating Vest

Main fabric composition: nylon/nylon. Three levels of color change and temperature control at 45 warm level, 35 comfortable level, 25 energy-saving level. The far-infrared light emitted by carbon fiber during heating is suitable for human health. It can resonate with the water molecules of human cells to speed up metabolism and activate cells in the body. Can be washed directly without disassembly and assembly of the heating system. Note: Before washing, remember to put the plug of the heating element in your pocket, and the power bank must be taken out.Note: The package does not include power banks.