Small size: 3.02.06.0 inches. Large capacity: 340ml to meet your hydration needs throughout the night. Advanced ultrasonic technology prevents noise interference during nighttime sleep, silent at 32 decibels, no noise, you can enjoy a high-quality living room. The humidifier has a nano spray. It can solve the dry problem of autumn and winter, relieve dry mouth and dry skin. Also, relieve stress and protect your health. The air humidifier can be powered by USB, which is easy to use and easy to place. Two-speed mode, continuous atomization, indirect atomization. As a night light, it can be used like a bedside lamp, creating a relaxing environment for a hassle-free sleep. Suitable for yoga, office, spar, bedroom, lounge area, bathroom, kids room and hotel.