▶AIR CIRCULATION - KMMOTORS Kooling Car Fan is good product for reducing moisture of car interior windshield on cold rainy days and disgusted hot air in summer. Also good for avoid the cigarettes smoke and odor, and also can reduce pet odor. The car fan features sturdy and high quality. | ▶COMPATIBILITY - If there's 12V or 24V USB power supplier, it is able to use. So you can use the product not only in the car but also office, home. When you driving, computing, watching TV you can use the fan closely than other product. | ▶QUIET CAR FAN - KMMOTORS Kooling Car Fan use so powerful and quiet motor, 3 wind speeds meet the needs of different environments and temperature changes. Use it with car air conditioner you can drive in pleasant condition. Also with controler of the cable, easy to on and change the power. | ▶SAFETY USB POWER - Don't worry about the explosion when car is hot in summer, there's any battery in KMMOTORS Kooling Car Fan, even the car interior temperature is too high, there's no problem from the car fan. And with USB supplier set it more safety and easy. | ▶LONG USB CABLE - KMMOTORS Kooing Car Fan has cable about 4.8 feet long, enough to set anywhere what you want to set. And with three types holder set it to your car, office, home and other place need to cool.