Two nozzlesTwo nozzles speed up the spray rate. This humidifier contains three spray modes: continuous spray, alternate spray and intermittent spray. The spray time is up to 12 hours and the intermittent spray time is up to 24 hours. MuteApply light sound technology, work below 35dB, do not disturb the work during the day, do not interfere with sleep at night, and let your baby have a healthy, quiet and humid environment. 7-color LED light7-color humidifier automatically changes, which makes it very practical and beautiful. The BPA-free material ensures that it is 100% healthy for babies and children. This desktop USB humidifier is small, light and easy to carry. It is a best New Year gift for family and friends. One-button control The portable USB humidifier is very easy to operate. One button control for all functions, just press one button to adjust the mist. Make your life easier Artistic reminder The humidifier is recommended to use clean tap water or mineral water. Do not use essential oils, perfume or distilled water, otherwise the cotton swab will clog and the humidifier will become unusable. Please make sure the cotton core is soaked for a few minutes before turning it on.