1. 2 in 1 Cooler & Heater: There are two modes to be chosen, natural fan or heat fan, 3s fast heating, 360 degrees adjustable.2. Easy to Install: Simply connect it to the car cigarette socket of the vehicle, ergonomic handheld design, and easy to carry3. Highly Effective: The powerful windshield defroster can quickly heat the air without having to wait for your engine to warm up, it can defrost quickly and efficiently.4. Safe & Durable: Made from ABS and polymer heat-resistant hard plastic, this automobile windshield heater features automatic heating, overheating protection, and a user-friendly design that is energy-saving with low consumption and low noise.5. Automatic Constant Temperature: Using anti-oxygen alloy heating wire, high heat conversion, high pressure resistance, fast heating, slow aging, long service life.