Cold winter heating lock temperature to keep warm Temperature-controlled electric heating vest Double-controlled thermostat Electric heating and temperature control for comfort and warmth Suitable 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 comfortable Electric heating black technology Carbon fiber heating wire Constant temperature system lasting temperature lock Fast heat generation Good effect Power saving Safe Dual control neon breathing light Dual control design is more humane, can be single adjustable control before and after the heating area Long press to turn on please press to change gears convenient and simple Multi-zone heating can be purchased