[2 IN 1 HANDLE CAR HEATER]-- Change the switch and the hot air or cool fan come out immediately. FAN is cold air, HEAT is hot air. Not only can it defrost/defog windows and windshields in winter, it can also be used as a car fan in summer to cool your car. [EASY TO USE & DEFOGGING]-- Easy operation,just plug it into your 12V vehicle cigarette socket and turn it on.(Make sure your car has a 12V lighter port) [3S FAST HEATING & DEFROST]-- The car heater can quickly heat the air in 3 seconds. Effectively keep the sight of the windshield clear and prevent fog or frost from blurring the line of sight. [WIDE APPLICATION]-- Instant heating. They are widely used at cars, SUVs, taxis, jeeps, trucks and other commonly used appliances. Fit for all 12V vehicle cars. [Intelligent design]-- This heater for car made of premium quality material and pure copper cable, automatic power-off protection, safer use. Low energy loss, low noise. DOES NOT DAMAGE THE BATTERY. With a rotate supporting suction holder, compact size, portable and convenient to use.