Item includes diffuser and three (3) 15 ml Young Living Essential oil. Oil selected is at the discretion of the seller at the time of sale. Diffusing essential oils is a perfect way to relax, dispel odors, and create an aroma-filled atmosphere of peace and harmony. The diffuser’s 11 different light settings can be turned off or on independent of diffuser function. The diffuser includes a romantic candle-like flicker mode. The diffuser includes a light cycle mode, so colors transition gently from one to another. Three run modes are perfect for a customizable experience: High mode runs approximately 5 hours continuously. Low mode runs approximately 8 hours continuously. Intermittent mode (1 minute on/1 minute off) runs approximately 10 hours.