【Adjustable Light Modes】: Long press the light button to turn on the warm light. If you press the second time, the light turns into breathing light. If you press the third time, the light will be off. Enjoy even, flicker-free light for stress-free work and relaxation. 【Adjustable Fog Modes】: Intermittent fog (3 seconds on / 2 seconds off), continuous fog, light only. You can simply press the mist button to select the modes you want. 【Quiet Ultrasonic Operation】: Humidify 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 battery powered, USB cable is included in delivery, USB adapter is not included). The humidifier automatically turns off when the water runs out. You don’t have to worry about your family being in danger or the device itself being damaged. It’s safer than a normal humidifier. 【Wide Usage】Great for