... ,Meterial Carbon fiber,coral fleece 4,size,standard nameHigh Quality Heating Slippers USB Warm Shoes voltage 5vpower 3wsize standard sizetemperature 40-45coloranimal shape,as ... , USB power, 5 voltages, power, 2.5W2,*High efficiency, when the environment temperature is 5°C--10°C,this foot warmer can warm ...