Adjustable Mist Modes & Light ModesLong-press the light button to turn on the warm light, the second time long-press, the light will be changed into breathing light, the third time long-press, the light will be turned off. Enjoy even, non-flickering light for stress-free work and relaxation. Intermittent Mist(3 seconds on/2 seconds off), Continuous Mist, Lights only. You can easily press the Mist button to choose the modes which you like.Ultrasonic Quiet Operationhumidifiers Less than 28 dB quiet atmosphere can create a quieter sleeping environment. The humidifier can humidify your living space to prevent dry, stuffy air and flu/cold germs infecting your loved ones. Prevent dry and chapped skin in dry winter months.Powered By Usb /Waterless Auto-OffThe cool-mist humidifiers powered by USB Adapter( NOT battery-operated, the USB cable is included, USB Adapter is NOT included). The humidifiers will automatically shut off when water runs out, no need to worry about causing danger to your family or damaging the device itself, safer than a regular humidifier.500ml Large Capacity & Large Sprayhumidifiers with tank capacity is 500ml, up to 10-16 hours working time. The large volume of 500ml and the fine spray are used to increase the air humidity. And improve the air quality in a medium sized bedroom, living room or any other rooms.Quality Material & Warm GiftHumidifier is constructed with the finest durable materials that provides long-lasting usability . A great gift for your families and friends on Christmas, Thanksgiving Day, New Year, Birthday, or other important days.