This ultrasonic aroma diffuser with colorful LED light, you can set the color and pattern at will. Its modified version nozzle, can arbitrarily 360 degree revolve and raises low angle. We have improved ultrasonic vibration with new technology, 1.7million /second. .It is more efficient than the 2million /time of the atomization, longer life –span and energy-saving.Dealing with the anti- acid anti- alkali，The aroma diffuser is suitable for any kinds of essential oils.If add several drops of pure essential oil, it will completely nebulization. Additionally, it has negative ion function.