Cool Mist Ultrasonic Humidifier for Baby,with Color LED Lights Changing and Waterless Auto Shut-off Function for Home Office Bedroom Room,easy to Clean 120ml (White) .No noise when working. This FGN ultrasonic humidifier spray out warm mist without any detectable motor noise, buzzing or anything that interferece with sleep. It is almost silent when mist come out and guarantee a good sleep while humidifying your room. .Dual function as humidifier and aroma diffuser. It not only blows nice and strong mist but also can be used as an aroma diffuser by adding essential oils for easier breathing and high quality sleeping. .Built-in 5 colors LED night light blue ,pink red yellow green,purple. When you turn on the humidifier, the light start to work with a color changing gradually to another color. It is beautiful, warm light making your bedroom a more cozy space. .Proper water capacity to run continually 4 hours. This humidifier can holds water of 120ML and works up to 4 hours, giving your room a proper humidity .Super Easy operation unit with auto shut off function. Adding a certain amount of water by the measuring cup. Press the only button on the unit and the mist comes out, the light on and color changes. Press the button again, you can choose a fixed color you like most. Press the button for the third time, you can turn off the light. for the fourth time pressing, you shut off the unit and it stops working. The humidifier will automatically shut off when the water runs up to maximumly ensure safety.