Cold winter heating lock temperature to keep warmTemperature-controlled electric heating vestDouble-controlled thermostat Electric heating and temperature control for comfort and warmthSuitable for all kinds of scenarios: the heating undershirt can help you easily spend a whole winter. Perfect for outdoor activities such as snowmobiling, motorcycling, mountains, campgrounds, hiking, skiing, fishing, hunting or everyday work and business in the office. Ideal for use in the fall and winter. 1. Integrated heating module. Intelligent heating2. 2. Waterproof design, safe and easy to clean process3. Infrared heating, no harmful radiation, stable performance, soft and comfortableElectric heating black technologyCarbon fiber heating wireConstant temperature system lasting temperature lockFast heat generationGood effectPower savingSafeDual control neon breathing lightDual control design is more humane, can be single adjustable control before and after the heating areaLong press to turn on please press to change gears convenient and simpleMulti-zone heating can be purchased