Features 1、High-end, safe materials: Heated sweatshirts, made of polyester fiber, heated interior made of spandex, very soft and non-radiation. In order to heat the back, shoulders, neck, waist and abdomen, the USB cable is hidden in a small pocket in the left pocket, please look carefully. 2、 3 levels of intelligent temperature adjustment: There are three heating modes: high temperature mode, normal temperature mode and power saving mode. You only need a power bank (not included) to start heating, and you can choose the most comfortable temperature according to your needs. 3、 Winter electric heating overcoat: This electric heating vest helps promote blood circulation and relieve muscle soreness. Very suitable for outdoor activities, such as camping, hiking, skiing, fishing, hunting, standing guard or daily work and business. Ladies winter vest. 4、 Precautions for cleaning the heated vest: The heated overcoat can be washed by hand or machine. Material: polyester Colour: black Size: M / L / XL / XXL / XXXL / XXXXL Heating area: 9 pieces of heating (back 2, neck 1, shoulder 2, waist 2, abdomen 2) Season: winter Tailoring style: slim Occasion: casual Fashion design shows your taste. Suitable for casual wear. Package List 1*Heating vest (with USB cable) 1*User guide (sewn on the pocket of clothes)