【Ultrasonic Technology】: Essential Oil Diffuser creates a fine mist using ultrasonic misting technology, which can be enhanced 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 release any harmful odor, provide you with a lifetime pleasant and healthy.Waterless auto shut-off Ensure your safety. 【All Day Long Lasting】: 550ml water capacity, provides up to 8 hours of continuous operation with no effort to refill. 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 unique wooden pattern, Exquisite packaging