Heating Cooling Mode:With hot and cold switch. In just 5 seconds, Car Heater can quickly remove the windshield fog or frost from the car by heating the air. It can also be used as a car fan to cool your car in the summer. Let you enjoy the cool summer and the warmth of the winter. Easy to use: Easy to use, plug it into the cigarette lighter socket of the car, or install it with double-sided tape, and then switch to the heater or fan. Instant heating, automatic power-off protection, anti-voltage. Safe Durable:using cigarette lighter plug design, built-in fuse, automatic power-off protection, anti-voltage, safer use. Long Transmitting distance and wide range, ideal for long trips or camping.operating voltage: 12 V continuous current. Power supply: 12V car cigarette lighter connector. Functional heater: Portable car heater, mainly used to quickly clean the frost, fog and air conditioner on the car windshield. The ideal way to drive on a cold winter morning. The best gift for family and friends. Wide Application: Suitable for all 12V vehicles, camping, long-distance travel, keeping warm in winter and cool in summer, bringing you a comfortable and safe driving experience.