Note: Battery not includedKEEP YOUR BODY WARM: The heating thermal underwear uses graphene heating fiber, which generates heat quickly, is elastic and has a long service life; the inner fleece lining is close-fitting and soft, providing three-layer heat preservation and circulating heat storageSAFETY PERFORMANCE: The heating underwear is equipped with heating pads; the high-quality carbon fiber heating pads heat up quickly, warming you at the core and keeping you warm in cold winter conditionsTEMPERATURE CONTROL: The heating underwear features an intelligent controller with a 5-speed temperature control button for easy operation, allowing you to adjust the heating temperature according to the environmentBREATHABLE AND COMFORTABLE: The heated thermal underwear is made of cotton and spandex. The soft, breathable, skin-friendly and lightweight fabric is smooth, comfortable, fits the body well, and allows freedom of movement in winterINDOOR AND OUTDOOR USE: Heated pants are suitable for home wear and ideal for winter outdoor activities such as hiking, jogging, cycling, motorcycling, fishing, skiing, and outdoor work. Makes a great gift for elderly individuals, partners, or friends. Suitable for Thanksgiving and Christmas gifting