【Ultrasonic Technology】: Essential Oil Diffuser creates a fine mist by means of ultrasonic misting technology, which can be enriched with aromas by adding essential oils. great for soothing your mood, relieving stress, helping you sleep. 【Safe And Environmentally Friendly Guarantee】: Adopts BPA-free material which will not emit any harmful odor, provide you with a pleasant life and healthy.Waterless auto shut-off Ensure your safety. 【All Day Long Lasting】: 550ml water capacity, provides up to 10-15 hours of continuous operation without refilling effort. High mist and low mist option for different situations. Increase the humidity of dry air, purify and cover unpleasant odors from pets or smoke for a restful and body-friendly home or workplace. 【Smart & Convenient】: 7 soothing LED colors for your choice. You can easily press the button to choose a timer setting as you like (1 hour / 3 hours / 6 hours / stable). 【Perfect For Gifts】: Featuring wooden pattern unique, Exquisite packaging