Fully dry: With 360 exothermic design, the shoes dries on average overall, deodorization and dry more quickly. Unique design: The shape is designed based on the instep of the shoe, making it easier to put in the shoe and do not deform shoes when dry. Overheat protection: Smart IC installed in the contents, it was able to sense the input current automatically On top of that, the current can be automatically switched to an effective 2A, preventing overcurrent, etc., and increasing safety. Safe to use: Adopting PTC heating element, it can dry to constant temperature average, adopt material that does not burn easily on the outside. With timer: 3H, 6H, 9H 3H mode can be set freely according to the application from these three modes.