Essential oil diffuser set: equipped with a 550ml aroma diffuser. Add our essential oils to the aroma diffuser, it will use ultrasonic technology to atomize water, float aroma in the air, add moisture to the air, soothe your mood, relieve stress and help to sleep. Upgraded version ML 550ML: The diffuser is very quiet and will not disturb your work, concentration or sleep. It can fill up to 550ml of water, generate 30-50ml of humidity per hour, and keep it cool in a room of 10-60 square meters. Made from BPA-free materials, it’s non-toxic and safe for babies. A remote is included so you can control the diffuser without leaving your seat. 7 Rainbow Lights: 7 colors of lights can be adjusted in color and brightness. It has 3 brightness modes: on / dark / off. Press the essential oil diffuser light button to select your desired color/brightness, or you can switch to auto light changing mode. Get the perfect combination of light and fragrance to create a relaxing environment for rest. Auto