Features: 1.Three heating modes: USB interface, power adapter, and power bank. 2.Easy to use, just put in the shoes and connect the power to enjoy the warmth. 3.Soft and comfortable, with exquisite workmanship. 4.Heating is stable, and safety is guaranteed. 5.Heating pad can be cleaned, be sure dried before use. Specification: Condition: Brand New Material: Soft Lint Color: Brown Heating Time: 10 Mins Optional Size: 35-36(23cm/9.1in), 37-38(24cm/9.4in), 39-40(25cm/9.8in), 41-42(26cm/10.2in), 43-44(27cm/10.6in) Weight: Approx. 78-84g Package List: 1 * Pair of Heating Insoles Note: The default power of the heating pad is 5V/2A. If your charger power is not 2A, it may result in non-heating. Powered by charger the heating power is 6-7W, if using the special adapter, the heating power will be 10-11W, 40% more heat than the charger does.Note: The heating pad can be cleaned, it must be dried before use!!! Otherwise it may be dangerous. Soft and Comfortable : Comfortable feet insoles are soft and comfortable, beautifully crafted, and comfortable to wear on the feet. Stable Performance : Electric heated shoe insole has stable heating performance and guarantees safety. Don't worry, you can use it with confidence. Three Heating Modes : Shoes insoles has three heating modes, including USB interface, power adapter and mobile power supply. Foot Warming Insole : The insole is easy to use, just put on your shoes and connect to the power supply to enjoy the warmth. You can also heat the shoes first, and then put them on your feet to feel the warmth instantly.Date First Available: October 19, 2020. Best Sellers Rank: #1,017,596 in Health & Household (See Top 100 in Health & Household) #2,697 in Diabetic Socks & Insoles. : B08LGK1N45. Size: ‎37-38. Part Number: ‎Dilwesggxizk4ha-02. Manufacturer: ‎Dilwe. Brand Name: ‎Dilwe. Item Weight: ‎80 Grams. Item Dimensions LxWxH: ‎17.32 x 1.97 x 0.39 inches. Package Weight: ‎200 Grams. Item Package Dimensions L x W x H: ‎9.06 x 4.72 x 0.79 inches.