Intelligent Constant Humidity Technology: The portable mini humidifier automatically maintains a constant humidity and maintains a comfortable and pleasant environment. Rotation Spray and USB Charging: 360 degree rotation spray port drive for better coverage of the room. USB charging for portable and flexible use. Quiet and Silent Design: The small cool mist humidifier has a quiet and silent design, which does not affect sleep and work. Detachable Design: The portable air humidifier is designed to be detachable for easy and maintenance. Dazzling Appearance: The portable mini humidifier has a dazzling appearance and is fashionable for home decoration.