Features 1、USB HEATING: The heated insole is used for heating via USB, the heat is uniform, and the heat conversion efficiency is high, which is very suitable for winter use. 2、SOFT INSOLE: The insole is made of carbon fiber heating material to make a soft heating sheet, and the EVA material makes it more resilient and more comfortable. 3、CUTTABLE: Since everyone's feet are different, this heated insole can be tailored so you can make it the perfect fit for your foot and shoe. 4、SAFE AND RELIABLE: This heated insole is safe and reliable, and you can enjoy the warmth it brings without worrying about leakage. 5、SCOPE OF APPLICATION: This heated insole is suitable for all people with cold hands and feet for a long time. It can be used after plugging in, and a power bank is required for outdoor use. Specification Item Type: Heating Cuttable Insole Material: EVA Rated Voltage: 5V Rated Current: 2A Temperature: 40-50℃ (3 gears adjustable) Package List 1 x Thermostat 2 x Insole 1 x Instruction Manual