2-in-1 Humidifier and Essential Oil Diffuser: Smart LED lights combine with the humidifier's atomization to create a realistic flame effect. You can add 3-5 drops of your favorite essential oil during application to relieve fatigue, moisturize the skin, and reduce stress. 7-Color Flame Night Light Diffuser: This essential oil diffuser is perfect for ultrasonic aromatherapy, collecting 7 types of lights and mists to create different realistic flame effects and bring a romantic and relaxing atmosphere to the night. Ultra Quiet: The noise can be controlled below 25 dB when the diffuser is on. Improves sleep quality, calms mood, and relieves stress while working, studying, yoga, or spa. Waterless Auto Shut-Off: The flame diffuser with its own 130ml water tank can work continuously for about 6 hours. The air diffuser automatically stops working when there is no water, safe and reliable.