Features: 1. Working temperature range: The working temperature of this electric vest is about -5℃ to 40℃, manually adjusted. USB interface power supply, carbon fiber heating wire, infrared heat, no harmful radiation. 2. 17-zone heating: The electric vest has 17 heating zones to care for your back, neck, shoulders, waist and chest. Keep you warm when you need it. 3. 3 control gears: This electric heated vest has 3 control gears, respectively, warm gear, 45℃, red lighting. comfortable gear, 35℃, white lighting. energy saving equipment, 25℃, blue lighting. 4. Wide use: Warm, comfortable and breathable electric heated vest, is a good companion for winter. Whether you are working outdoors or indoors, this vest can provide you with a comfortable experience. 5. Polyester material: Our electric vest has a waterproof level of 3, which can help you wash it at water, made of polyester fiber, and the lining is also made of polyester fiber. Specifications: Item Type: Electric Vest Material: