【Three in one humidifier】250ml 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 Humidification】The 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