Note:Not including the power bank. Whole body intelligent heatingCarbon fiber filament heating elements are used to generate heat in the core parts of the body (shoulders, back, elbows, waist, buttocks, calves, abdomen, lower abdomen, knees) to make you feel warm in the cold winter. High-quality and comfortable materialThe inner layer of the heated thermal underwear is made of comfortable fluff; the middle is made of soft and breathable fabric to provide you with all-day comfort and warmth. Zero radiation. Make it an ideal companion for autumn and winter. Can be washed by hand or machine, the washing machine does not affect the heating system inside the clothes. USB interfaceThe USB plug of the warm clothing is powered by any 5V/2A USB portable charger, which is compatible with most portable chargers on the market. Wide range of applicationsOur rechargeable electric underwear is suitable for various indoor and outdoor activities, such as work, sports, dog walking, skiing, skating, sledding, camping, hiking, hunting, snow fishing, cycling, motorcycles and arthritis Patients etc. An ideal gift for elders, lovers or friends. The best Thanksgiving and Christmas gifts.