Feature: 1. Exquisite Design: Heating carbon fiber focuses on areas of the body that are prone to getting cold. Heating is fast and stable. Wearingthe heated jacket can significantly increase skin temperature. 2. Universal USB Interface: This heated jacket for men women can be used with a daily 5V output mobile power supply. To ensure optimal heating, please make sure to use a 5V 2A mobile power supply. 3. Waterproof and Warm: The heating jacket is waterproof and breathable, keeping you warm. It can make you enjoy snowmobile, motorcycle, hiking, camping, skiing, fishing, hunting, or daily office work. 4. Safety and Protection: The heating suit is equipped with a built in thermal protection module. Once it overheats, it will stop until the heat returns to the standard temperature, so it is 100 percent safe to use. 5. Power Supply: Using a universal power bank with a universal USB port, you can choose from a high storage capacity power bank or prepare multiple batteries in advance. Specification: Item Type: ​ Heated Jacket Material: Polyester Fiber Product Color: Blue . Package List: 1 x Heated Jacket Note: Washing instructions: Take out the mobile power supply, add neutral detergent for hand washing, do not forcefully rub or beat, and let the washed clothes naturally ventilate and dry before use.