Adjustable lighting modes: Long press the light button to turn on the warm light. If you press the second time, the light will turn to breathable light. If you press the third time, the light will be off. Enjoy seamless, flicker-free light for stress-free working and relaxing. Adjustable fog modes: intermittent fog (3 seconds on / 2 seconds off), continuous fog, light only. You can simply press the fog button to select the modes you want. Quiet Ultrasonic Operation: Moisten your living space to prevent dry sticky air and cold flu / germs from infecting your loved ones. Avoid dry, cracked skin during the dry winter months. USB powered / waterless auto shut off: Powered by USB adapter (not powered by batteries, USB cable is included in delivery, USB adapter is not included). The humidifier automatically turns off when the water flows out. You don't have to worry about your family being in danger or the device itself being damaged. It is safer than a normal humidifier. Wide usage Great for different environments, eg bedroom, kids room, office, spa, yoga, don't worry about the quality of your baby's sleep when you are in the dark. It can also be used as a desk decoration to create a comfortable and pleasant atmosphere. Great gift, elegant design is a good choice for gifts. Ideal for a birthday, Christmas. 1. Press the button for the first time and press the button a second time to switch to intermittent mist (3 seconds on / 2 seconds). 2. Long press the button for the first time to turn on the LED night light. Press the button a second time to switch the LED night light to the blast light. Features: Material: ABS + PP + silicone. File format: USB Water tank: 500 ml. Usage time: 10 am to 4 pm. Note: The humidifier cannot use pure water or potable water. (reason: If the humidifier is filled with pure water or potable water, the spray water does not contain minerals, which means the spray mist is relatively light and not easily high or water . Do not put in the water tank with aroma or essential oils. The normal humidifier is not corrosion resistant.