2 IN 1 HUMIDIFIER AND ESSENTIAL OIL DIFFUSER: Lumiè LEDs combined with humidifier atomization to create a realistic flame effect. You can add 3-5 drops of your favorite essential oil during use to relieve fatigue, moisturize skin and relieve stress. 7-COLOR FLAME NIGHT LIGHT DIFFUSER: This essential oil diffuser is perfect for home aromatherapy. Ultrasonic, collects 7 kinds of lights and mists to create different realistic flame effects and create a romantic and soothing atmosphere at night. Extremely quiet: Sounds can be generated and controlled; below 25dB when the diffuser is working. Improve the quality of your work and sleep and calm your mood, relieve your stress while working, studying, doing yoga or spa. AUTOMATIC SHUT-OFF WITHOUT WATER: The flame diffuser comes with a rechargeable battery. With a 130ml water tank, the air diffuser can work continuously for about 6 hours and the air diffuser will automatically stop working when water is lacking, which is safe and reliable.