100mL Ultrasonic Diffuser provides a high-class touch of style to your room. Add the fragrance of your favorite essential oils to your home with the simplicity and style of a Diffuser. Simply add water and a few drops of oil and turn on. Automatically shuts off when the reservoir is low on water. Color changing LED lights enhance the beauty. If you feel like a different fragrance the next day, just choose a different oil to add to the Diffuser.