2 IN 1 HUMIDIFIER AND ESSENTIAL OIL DIFFUSER: Intelligent LED lights 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, reduce stress 7 COLOR FLAME NIGHT LIGHT DIFFUSER: This essential oil diffuser is perfect for ultrasonic aromatherapy, collects 7 kinds of lights and mists to create different realistic flame effects, bringing a romantic and soothing atmosphere at night Ultra Quiet: The noise can be controlled below 25dB when the diffuser is working. Improve your sleep quality and soothe your mood, relieve your stress during work, study, yoga or spa. WATERLESS AUTOMATIC SHUT-OFF: The flame diffuser comes with a 130ml water tank, can work continuously for about 6 hours, and the air diffuser will automatically stop working when there is no water, which is safe and reliable.