Three in one humidifier250ml water tank design, with 35ml/h mist output, with USB interface, you can insert a small fan and night light, the product is equipped with the function night light. the fog throughout the night makes you have a nice and peaceful sleep. Optional night light, provides a soothing glow for your relaxation. Quiet HumidificationThe ultrasonic air humidifier provides cool mist to eliminate static electricity and dust in the air. Equipped with unique noise reduction technology and high-performance motor, the operating noise can be controlled within 30dB, creating an extremely quiet and comfortable working and sleeping environment. Ideal for bedroom, living room, office. Unique design Exquisite design, small size, easy to carry, can be used anywhere. It can be placed in the car and in the bedroom, it is also a good decoration for the home. Simple and easy to use Powered by USB cable, click the button to activate the humidification function, press a second time to activate the indirect humidification mode, long press to activate the night light function Seven colors, the color of the night light changes automatically. Automatic shutdown The humidifier baby air dryer has various protection devices, it will shut off automatically when the water runs out. Don't worry about harming your family or damaging the device itself. Proper hydration helps relieve nervous tension, eliminates fatigue and soothes dry skin and eyes.