PTC Ceramic Heating for Clear Visibility Defrosts windows efficiently and defogs the glass, melting thin fog and thick frost with a powerful PTC ceramic heater. Generates a warm air flow within seconds to improve visibility and driving comfort. Constant Warmth Throughout Your Drive An intelligent constant-temperature heating system adjusts the air temperature to match the interior of your car, delivering steady warmth for both short trips and longer journeys. All-Around Warmth Coverage Designed for cold winter weather, the warm air evenly coats the cabin. The multidirectional vent design lets you feel the warmth from every corner of the interior. Easy to Use and Universal Fit This portable car heater is simple to install and can be placed anywhere inside your vehicle to deliver efficient, quick heating. It is suitable for all vehicle types, including passenger cars, commercial vehicles, and SUVs. Practical Use Scenarios - Winter mornings: rapidly defrost and defog the windshield to ensure safe visibility before you drive. - Long road trips: maintain a comfortable cabin temperature for a more pleasant journey. - Parked outside in freezing conditions: pre-warm the interior so you can enter a comfortable vehicle.