Features:1, large size warm and comfortable compression leggings, with velvet inside, skin-friendly and good elasticity2, smart USB charging heating jacket, smart switch, no radiation, safe use3, Knees heated pads also help promote blood circulation, relieve muscle pain. The best Christmas gift for parents and family.how to use:Connect the power supply using a USB cablePut the mobile power in your pocketPress and hold the button for 3-5 seconds, then start heatingChoose your preferred temperature and the jacket will automatically heat upSpecifications:Name: Intelligent heated PantsHeating area: 2 heating areasSuitable seasons: Autumn and WinterApplicable gender: neutral / male and femaleFunction: keep warmStyle: composite fleeceFabric: FleeceApplication: indoor, skiing, fishing, travel, camping, cycling, work and winter sportsPacking List:Heated Pants*1Note:This pant does not include mobile power.