The VITALITY Mini Nanum Car Humidifier Air Purifier Aromatherapy Essential Diffuser is a compact and efficient ultrasonic humidifier designed for use in cars. With a timer control of 4 hours, this mini humidifier is powered by a 12V battery and is compatible with universal smart home systems. Its sleek plastic design makes it suitable for travel and any room in the house. Perfect for improving indoor air quality and creating a relaxing aroma in your vehicle, this essential diffuser is a convenient and practical addition to your home or car.