1. [Dimmable Mode]: Long press the light button on the bedroom humidifier to turn on the warm light. When you long press for the second time, the light becomes breathing light. Press and hold for the third time to turn off the light. Enjoy even, flicker-free light for easy work and relaxation 2. 3 Adjustable Fog Modes: The room humidifier has 3 modes. Intermittent fog (3 sec on / 2 sec off), continuous fog, light only. You just press the fog button to select the desired mode. 3.USB power supply/automatic shutdown without water: Powered by USB adapter (not battery powered, USB cable included, USB adapter not included). When the water runs out, the humidifier will automatically turn off. You don't have to worry about your family being damaged or the device itself being damaged. Safer than regular humidifiers 4. Wide UsesUltrasonic humidifier is very suitable for different environments, such as bedroom, children's room, office, spa, yoga, don't worry about your baby's sleep quality when in the bathroom. 'dark. An air humidifier can also be used as a tabletop decoration to create a warm and inviting atmosphere. 5. Quiet operation: The kindergarten humidifier is very quiet, which can create a quieter sleeping environment. Humidifying plants can humidify your living space to prevent dry, muggy air and cold flu/bacteria from infecting your loved ones. Avoid dry, cracked skin during dry winter months.