Product name: Heating setProduct color: BlackProduct size: S-6XLFabric material: warm fabricApplicable audience: male and femaleNote: Can be gently machine washed, add laundry bag can better protect the heating clothingRapid heating: Rapid heating within 10 seconds, up to 55 C. Stable performance, safe and reliable, three-speed adjustment, one-key switch. Jackets and pants have separate temperature control. Press and hold for three seconds to turn on or off. Red light is about (55 C /131 F), white light is about (48 C /118 F), and blue light is about (42 C /108 F).USB interface: Men's and women's electric underwear with USB interface. This means you can use any 5V/3A-2A power pack to power your thermal underwear. A 20,000mah power bank will generate at least 10 hours of heat in thermal underwear, and 42 thermal sheets will keep you warm all over your body and keep you warm throughout the day. It can be washed by hand or machine, and the washing machine will not affect the clothes being heated in the heating system. Tips: No power bankMen's and women's electric heating thermal underwear: 42 heating parts, shoulder, back, waist, elbow, armpit, abdomen, knee, hip, leg, heating area is wider, heating balance. Men's thermal underwear has the effect of promoting blood circulation, promoting metabolism, reducing muscle stiffness, promoting blood circulation and keeping warm.Quality material: men's and women's electric heating thermal underwear, wool lining, inner ring material: polyester cotton + outer ring material: spandex, polyester cotton material feel comfortable, effective insulation, warm and reliable, soft, moisture absorption heat, is a set of men's and women's heating underwear, is the ideal partner in autumn and winter.Wide range of applications: Our men's and women's rechargeable electric underwear is suitable for a variety of indoor and outdoor activities such as work, sports, skiing, skating, snowboarding, sledding, snowshoeing, camping, hiking, hunting, snow fishing, biking, ice skating, motorcycling and Reynold, arthritis sufferers, etc. It is an ideal gift for elders, loved ones or friends. The best Thanksgiving and Christmas gifts.Standard size: Men's and women's heated thermal underwear set standard American sizes, from S to 6XL, meet the needs of most people. Our undergarments are lightweight and fit to the body without any foreign matter, making it easy for people to move and stretch in any way. The cuffs and buckle area of the trousers are reinforced and trimmed. Thermal underwear is quick-drying and shock-proof, even when wet. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia