1. Double-open 9-zone heating technology: This vest uses double-open 9-zone heating technology, which divides the body into nine zones. Each zone has an independent heating element, which can achieve zone control, making you feel overall warm and comfortable. 2. Intelligent heating function: This vest has an intelligent heating function, which can adjust the temperature of different areas through the controller, allowing you to choose the appropriate temperature according to your personal needs. You can adjust the heating level of the vest at any time according to indoor and outdoor temperature changes. 3. USB charging design: This electric heating vest adopts USB charging design. You can charge it through a common USB interface, which is very convenient. After charging, the built-in battery pack of the vest will supply electricity to realize the heating function, avoiding the trouble of replacing batteries when using traditional electric heating equipment. 4. Comfortable wearing experience: This warm clothing is made of soft and comfortable fabrics with good breathability and moisture absorption and perspiration functions. At the same time, its close-fitting design does not restrict your movements, allowing you to move freely. 5. Use in multiple scenarios: Benefiting from intelligent heating technology and convenient USB charging method, this electric heating vest can be used in various scenarios. Whether it is outdoor activities, winter sports, office work or daily life, it can provide you with warmth and comfort. All in all, the dual-open 9-zone heating clothing, smart heating vest, thermal clothing, USB charging electric heating vest has become a popular thermal clothing with its advanced heating technology, smart functions and comfortable wearing experience. Whether in the cold season or in various outdoor activities, it can provide you with a warm and comfortable wearing experience. EASY MAINTENANCE The heated waistcoat is made of high-quality fabrics, which are not easy to stain and can be washed It is recommended that you wash by hand or in a washing machine THREE TEMPERATURE SETTING Front & back heating and temperature control, adjust the required temperature according to the sense of the body, long press for 3 seconds to turn on/off, short press to shift gears