Features： 1、Using soft fabric, built?in thermal insulation fiber heating material, comfortable and wear?resistant, durable. 2、Imported composite fiber heating wire is used, the heating wire is densely routed, even heating, the temperature is high, not easy to oxidize, burn out the circuit, etc., and the service life is long. 3、You can put it directly in your jacket, vest and other clothes for warm keeping and heating, using a 5V 2A power supply, such as a computer, power adapter or power box (this product does not include a power supply). 4、It has a certain degree of folding and water resistance, even heating, washable, but do not immerse in water for a long time (the cloth is stuck together, long?term soaking may affect the adhesion of the glue). 5、The switch adopts full waterproof coating for better waterproof effect. The electric wire has the characteristics of resistance to folding, waterproof, tensile strength, and long service life. Repeated cleaning will not affect the use. 6、It is light and convenient, and it is convenient to carry for outdoor camping or other activities in winter. Specification： Item Type: Heating Pad Material: Composite Fiber Power Supply: 5V2A Power Supply Mode: USB Charging Adjustable Temperature: 45℃-65℃ Gear Setting: Red (High-Gear), Blue (Mid-Gear), Green (Low-Gear) Single Heating Pad Size: Approx. 160 x 250mm / 6.3 x 9.8in Scope of Application: Vests, clothes, belts, vests, waist protectors, shoes Features: Washable, lightly rubbed, insulated, no static electricity, resistant to pulling Note: 1. The heating cloth must be plugged into a 5V2A power adapter or a 5V2A power bank for heating to achieve the desired effect. If the output is not reached, the temperature control switch light will not turn on or the heating effect will not be obvious when the high temperature gear is used. 2. When using, please wrap the heating pad up and down with a thick cotton cloth such as a towel. This is to prevent the heat from being quickly dissipated. The temperature cannot be measured when placed on a table. Package List： 1 x Heating Pad