1.Aroma diffuser humidifier use gear: first gear, double spray + seven-color ambient light; second gear, intermittent single spray + seven-color ambient light; third gear, double spray + fixed-color ambient light; fourth gear, double spray + no ambient light; fifth gear, shutdown. Off: 10H automatic power-off protection. Large caliber water tank, easy to add water for cleaning. 2.SUPER QUIET ENJOY SLEEP LIKE A BABY: Very quiet and noiseless in use. This diffuser dispenses the soothing cool spray you want steadily and efficiently without any buzzing, whistling or crackling. Perfect for work, study or sleep. 3.Extra Large Essential Oil Diffuser Multi-Functional Aromatherapy Device: this essential oil diffuser is an amazing aromatherapy device unlike any other you've ever used. It features a huge and easy-to-clean 2500ML (88 oz) water tank, 7 different LED light colors, multiple mist modes, and a safety auto switch that prevents it from overheating when it runs out of water. 4.THOUGHTFUL DESIGN: This aromatherapy diffuser has a safety auto shut-off feature that automatically shuts off when the water runs out. Dual spray large mist volume chimney shaped outlet ensures high mist flow without leaving steam on your beloved furniture. Designed with a noise-reducing inner cover, it effectively reduces dripping noise during operation. 5.HIGH MIST OUTPUT LARGE HUMIDIFIER MADE WITH QUALITY MATERIALS: In addition to being used for aromatherapy, this essential oil diffuser can also be used as a humidifier. Use it to improve the air and air quality in your home, mask pet or smoking odors, and protect your family from excessively dry air! Name: 2.5L simulation volcano aromatherapy diffuser humidifier. Color:white,black. Lighting:Colorful ambient LED lights. Power:1.5-3W. Material: PP+PC+electronic components. Voltage:DC5V. Capacity:2500ML. Product weight: Net weight 576g. Product Size:W188*H215mm. Light sound and low noise: 36-45db. Includes:1*2.5L simulation volcano aroma diffuser humidifier,1*power cord,1*user's manual.