DRY WITH A CONSTANT TEMPERATURE: The shoe dryer has a built-in PTC heating element, which constantly heats to dry and destroy the living environment of shoe microbes through high temperature, and has the effect of inhibiting the growth of microbes while by eliminating odors. Say goodbye to bad odor caused by sweat during exercise and worries about wet shoes on the road of life. Ring heating: The portable shoe dryer has a ring design. Two heating elements are on its two sides, and the area is widened to dry, which can evenly dissipate heat, accelerate moisture evaporation, and quickly restore wet shoes. The ring design is also suitable for more models of shoes and socks, such as cotton mops, snow boots, sneakers, etc. Porous heat dissipation: 1532 heat dissipation holes are widely distributed in the shoe dryer. When heating, a ring-shaped hot air flow is formed in the space of the shoes, the heat is evenly distributed, taking into account the sole and the upper, and the dead corners can also be dried uniformly. Timer setting: For shoes of different materials, thickness or humidity, you can set the timer 3/6/9h to turn off. Let the multi-function shoe dryer run safely and quietly. Precise time control can protect your beloved shoes from overheating. At the same time, you also have more time to enjoy a comfortable shoe-wearing experience after your shoes are dried. Fire resistant: the shoe dryer is made of UL94 V0 ABS. Compression and high temperature resistance, not easy to burn and deform during use. The product size of the shoe dryer is the size of the palm of your hand. It can be easily stored in a suitcase or hand luggage. It is very suitable for travel or family use, so it will not be cold this winter.