heat clear shoes / shoes

Shoes is an indispensable product in people\'s life day-to-day. This is a \" shoes\" That it can keep warm and it design in room in winter. People can also be warm their feet in work and life in the cold winter. So you can said that is a comfortable, environmental and health shoes.
The principle of power : When you trample the shose, it can bring electricity for magnetic field cuts lead, then the electricity changes heat energy. So it can keep warm to control in about 30 degrees through PTC resistors.