Vibrant colourful light and night light: this fog humidifier has a vibrant colourful LED light that creates a peaceful atmosphere while providing a soothing mist. It offers you maximum relaxation. The night light could also improve your sleep quality. Button control: Click on the function button to continuously by default. Click twice to switch the interval , for 3 seconds and hold it for 3 seconds. Click again to turn off the . When switched on, press the function button for 2 seconds to turn on the colour gradient, press for 2 seconds to fix the colour, and three times to turn off the light. Two modes and waterless automatic switch-off function: the cool mist room humidifier contains 2 modes: continuous spraying and intermittent spraying. The duration of the mist can take up to 4 hours, the intermittent mist can last up to 8 hours. So you don't have to worry about the humidifier being damaged in the absence of water. You can use it at night without worrying about . Small size and powerful: this desktop humidifier holds 220 ml of water, and easy to use. Whether , in the office, in the car or on holiday. This portable USB room humidifier bedroom helps to relieve the dry indoor climate, clean the air, helps increase humidity and increase your quality of life. [Wide Usage]Perfect for different environments, such as bedroom, children's room, office, spa, yoga. It can also as a desktop decoration to create a cosy and pleasant atmosphere. (Suggestion:) If the humidifier does not on the first use, fill it with water and then turn it upside down for 5-6 seconds to allow it to absorb enough water faster or soak the filter. colour: black Material: ABS Package Contents: 1 x Humidifier 2 x Cotton swab 1 x USB cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.