Ultra Quiet and Very Safe: The humidifier works almost silently at 23dB thanks to ultrasonic technology. It will never affect your work or life. The humidifier can automatically turn off when the tank runs out of water. To avoid accidents and extend the life of the humidifier. Note: If you receive a slanted inner core, don't worry that it is a bad product, it can be used normally! Large Capacity and Digital Display: The humidifier can work for a long time with 500ml water capacity. The digital display can clearly show the remaining battery charge. With a compatible USB cable adapter, the laptop power bank can be easily charged in time. Adjustable Spray: Our ultrasonic humidifier has two spray modes: single spray and double spray. With an adjustable mist flow rate of up to 45ml/h, you can easily control the humidity for maximum comfort. Night light mode: Soft light helps eliminate fear of the dark and does not harm the eyes. For parents with newborns, the light makes nighttime diaper