Dual Core Heating, Quick DryingEach shoe dryer has two built-in heat generators, which are placed inside the two ends of the ring, evenly emitting heat to quickly dry shoes, remove moisture and give you a warm and fluffy wearing experience.No Dead-End Drying, Hot Air CirculationThe surface of the product is set up with 1532 radially arranged heat dissipation openings, forming a hot air circulation in the enclosed space of the shoes, drying the whole shoe evenly, including the heel, toe and other drying dead ends. Protect shoes from moisture, keep feet comfortable, healthy and dry.Thermostatic safetyusing PTC heating element, built-in thermostat, the temperature control at 149F ~ 176F, precise temperature control effectively protects shoes from overheating or burns. Shell material is ABS UL94 V0 fire-retardant shell, automatic carbonization in case of fire to prevent combustion. Eliminate accidental hidden dangers, more secure.Lightweight and Compact, Easy to Carry and StoreOnly the size of a cell phone, the whole unit weighs only 320g. Easily stored in a suitcase or handbag, it is perfect for travel or home use, keeping shoes and gloves dry and warm.