COLORFUL NIGHT LIGHT MODEThis air humidifier has a VIVID color cycle light setting that creates a peaceful environment while providing a relaxing mist. It uses nano-spray technology to ensure a fine spray mist and provides maximum relaxation. The night light could improve your sleep quality. USB PORTABLE MINI HUMIDIFIERCompact and portable design makes it easy to take anywhere. The USB power bank is compatible with any USB port on the device, ensuring it can be used in the bedroom, office or car. SUPER QUIET Ultrasonic humidifiers produce a near-silent 26dB frequency ensuring ultra-quiet operation. This humidifier will not disturb you while you sleep and work. It can effectively moisturize dry skin and help you reduce skin peeling. ONE-BUTTON CONTROLPortable USB humidifier is very easy to use. One button controls all functions, you just need to press the power button every 1 second to control the fog. Keep pressing the power button for 3 seconds to activate the night light and colorful light function. TWO MIST MODES AND AUTOMATIC OFFThis humidifier has two mist modes: continuous and intermittent mode. In continuous mode, it automatically turns off after 4 hours. In intermittent mode, it automatically turns off after 6 hours. It turns off when the water level is low. HOW TO USE IT? 1.Installation of springs and filter in cotton; 2.Add water to it; 3.Plug in the USB power cord; 4.Press the d button to start the mini humidifier. HOW TO OPEN LIGHT MODE? 1.Press the power button for 1 second to start continuous mode; 2.Keep pressing the power button for 3 seconds to start sleep mode; 3.Keep pressing the power button for another 3 seconds to start sleep mode; colorful lighting; 4.Press the power button for another 1 second to start intermittent fog mode;