Colorful Night Light Mode: 7 multi-colored LEDs with two brightness settings create a cool and relaxing atmosphere in your room. Choose between two modes: fixed color or automatic color change. One-Button Control: Portable USB humidifier is easy to operate. One button controls all functionspress the power button every 1 second to control the mist output. Press and hold the power button for 3 seconds to activate the nightlight and colored light. Quiet Operation: Ultrasonic technology ensures quiet humidification at 30dB, producing a fine, cool mist. Ideal for use while sleeping or working without disturbance. Safety with Auto Shut-off: The humidifier automatically shuts off when the timer ends (4 or 8 hours) or when water is depleted. Compact, lightweight, and portable, suitable for bedroom, office, car, yoga room, travel, and hotel use. Helps maintain skin moisture and improve air quality. Perfect Gift: An elegant decorative item ideal for home or office. A great gift choice for friends, family, or loved ones.