This electric heating vest, with its four-zone dual-control intelligent temperature control technology and self-heating upon charging, is the ideal choice for outdoor activities, providing you with lasting warmth.Features:Carbon fiber heating: The new black technology of carbon fiber heating is evenly distributed to the body for a warm effect.Four major heating areas: The heating surface is for the abdomen, back, neck, and other parts that are easily cold.Three-speed intelligent temperature control: Press and hold for 5 seconds to turn on, press lightly to shift gears, dual control can heat the front and back separately.USB interface: The pocket for the power bank is convenient for charging.Whole body washable: Before washing, you need to remove the power bank first, and the heating sheet plug is in the pocket. Machine wash needs to be in the laundry bag.Specifications: Color: Black Size: S-2XL Fabric: Polyester Filling: Artificial velvet Heating sheet: Carbon fiber heating Heating area: 4 areas heating Temperature control: Front and back can be controlled separately 45-60°C Weight: S:405G / 0.89lbsM:423G / 0.93lbsL:441G / 0.97lbsXL :459G / 1.01lbs2XL:477G / 1.05lbsPackage list: 1* Electric heating vest