4 in 1 multifunctional humidifier + car aroma diffuser + air purifier + dual T USB port charger (2.1A and 2.1A). Support your car room air conditioning system and universal USB ports can work with all USB powered devices such as Android and Apple smartphones and tablets at the same time.Clean your car air, your car air is always not healthy and fresh. This humidifier can produce super weeny water droplets and oxygen anions, Weeny water droplets absorb dust and bacteria, thermal oil and anion will make the air fresh and sweet.Intelligent auto-off design automatically shuts off when the water is below the low water pipe to ensure a longer lifespan of this car air purifier and no showering during operation. 360 degree full angle rotation, suitable for cigarette lighter anywhere in car.Easy to use, just fill the cup with water or essential oils and plug it in, clean your car air conditioner and charge your electronic devices immediately.The best gift and satisfaction: It is also a good choice to give this car humidifier as a gift to your family or friends.