Vibrant Colorful Light and Night Light - This mist humidifier features a vibrant colorful LED light that creates a peaceful atmosphere while delivering a soothing mist. It offers you maximum relaxation. The night light could also improve your sleep quality. Button Control: Click the function button to spray continuously by default. Click twice to toggle the intermittent spray. Spray for 3 seconds and hold for 3 seconds. Click again to turn off the spray. Night light: When on, press the function button for 2 seconds to turn on the gradient spray. Press for 2 seconds to fix the color, and three times to turn off the light. Two Spray Modes & Waterless Auto Shut-Off: The cool mist humidifier contains 2 spray modes: Continuous spray & Intermittent spray. The mist duration can last up to 4 hours. The intermittent mist spray 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 safety. Small size and powerful: This desktop humidifier holds 220ml of water. Lightweight and easy to handle. Whether at home, in the office, in the car, or on vacation, this portable USB humidifier for the bedroom helps relieve the dry indoor climate, purify the air, and increase humidity, improving your quality of life. Wide application: Ideal for various environments, such as bedrooms, children's rooms, offices, spas, and yoga studios. It can also serve as a desktop decoration to create a cozy and pleasant atmosphere. (Suggestion:) If the humidifier doesn't spray during the first use, fill it with water and then turn it upside down for 5-6 seconds to help it absorb enough water more quickly or to soak the filter.