Feature: 1. Upgrade heating, lock temperature to keep warm, intelligent constant temperature electric heating, three-speed temperature control, comfortable and warm. 2. Electric heating carbon fiber heating, plus velvet lining to keep warm technology Double warmth. 3. Dual-control design. The chest and back can be individually controlled for temperature. Long press to turn on/off, lightly press to shift gears. 4. Hand pockets on both sides to store any it. Color matching materials and craftsmanship, the appearance is more beautiful and fashionable. 5. Suitable for commuting in the city, outdoor rock climbing, outdoor camping and mountaineering and skiing, outdoor sports, cold winter at home. Three gear modes: High-end (red light)-temperature of 55-65 degrees Mid-range (white light)-temperature of 45-55 degrees Low-end (blue light)-temperature of 35 -45 degree Package List: Heating vest*1 Manual *1 Note: It is recommended to wash by hand, try not to wash in the washing machine, if you use the washing machine to wash, you must put it in the laundry bag for washing