USB Humidifier delivers ultra-fine mist moisture with ultrasonic vibration. Generous mist humidifier keeps the air out of your eyes, throat, prevents the growth of static electricity and dust from scattering, relieving pollen allergies, preventing colds and allergies, and also increases body metabolism and keeps skin moisturized. Quiet and energy-saving design: Low noise when driving or working, and 33.7 dB means safe and safe for children to use. You can drive your car silently at any time and use it at late night. (Water Soluless) It is compatible with aromas, so you can enjoy the scent you like. The synergistic effect of moisture and fragrance makes you feel more soothing and relaxing to your body and mind. QC3.0 Rapid Charging: This product is equipped with two USB charging ports that are compatible with 12V/24V vehicles, and the QC3.0 charging port can be charged twice as fast as conventional products. When using the humidifier, you can charge your device without disturbing your smartphone or tablet. With its compact-design, USB cable and car adapter are standard, this car / desktop humidifier can be used in a car or around a desk in the office, etc. The structure prevents water from leaking even when flipped sideways, upside down, making it safer to use in the car, making it the perfect gift for your girlfriend, friends and family. Note: Please allow 1-3mm error due to manual measurement, thank you. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. If you have any questions, please contact us. We will reply you within 24 hours.