VIVID COLORFUL CYCLING LIGHT & NIGHT LIGHT - This cool mist humidifiers has a VIVID colorful Cycling light setting creates a peaceful ambiance while delivering a soothing mist. It offers maximum relaxation for you. The night light could improve your sleeping quality. PORTABLE MINI HUMIDIFIER & USB POWER SUPPLY - Portable and small design is very easy for you take to anywhere. The USB Power Supply compatible with any device USB port which ensures it can be used in the bedroom, office, car. QUIET ULTRASONIC OPERATION - Ultrasonic humidifiers produce a near-silent frequency 26dB (quieter than a library) ensuring ultra-quiet operation. This humidifiers won’t bother you while sleeping and working. It can effectively moisturize dry skin and help you reduce skin peeling. ONE BUTTON CONTROL - The portable USB humidifiers is very easy to operate. One button controls all functions, you simply need to press the power button every 1 second to control the mist. Keep pushing power button for 3 seconds to enable the night light and colorful light function. TWO SPRAY MODES & AUTO SHUT-OFF - This humidifiers has two mist modes: Continuous and intermittent mode. On continuous mode, it will automatically shut-off after 4 hours. On intermittent mode, it will automatically shut-off after 6 hours. It shut-off when the water level is low. Thus, you don't have to worry about the humidifiers being damaged in the absence of water. You can use it at night without worrying about safety. Product Description WHY should i need a mini humidifier? --A portable and contemporary humidifier is an effective and simple way to take cool moisture with you everywhere ----Like some of our other picks, it is powered by a USB cord, so you can plug it into your laptop, car or any standard USB charging brick. On its normal, continuous setting, it releases a cool, clean mist for 4 hours; change it to the intermittent setting and you'll get a total of 6 hours of added cool moisture, also can provide you a soft night light for use in the bedroom. Whether you're a small space-dweller, have an arid desk situation going, or are looking for a good travel option, mini humidifier will offer the sweet relief you crave from dry air. HOW TO USE IT? Installation of springs and swabs; Add water into it; Plug in the USB power cord; Push the power button to start the mini humidifier.HOW TO TURN ON THE LIGHT MODE? Push the power button 1 second to start the continuous mode; Keep pushing the power button for 3 seconds to start the night light mode; Keep pushing the power button for another 3 seconds to start the colorful light mode; Push the power button for an additional 1 seconds to start intermittent spry mode;ANYWHERE & ANYTIME IN YOUR HOMEIN YOUR OFFIECEINT YOUR CAR PORTABLE MINI SIZEPortable and small design is suitable for you to take to anywhere.USB POWER SUPPLYCompatible with any device USB port, such as computer, power bank,ect.AUTO SHUT-OFF FUNCTIONThe 300ml tank allows for more than 4-6 hours of silent operation- Perfect for night use in babies’ & kids’ room. MOST IMPORTANT NOTE: Q: The humidifier has produced a less steam and doesn’t seem to be working properly. WHAT happened? HOW should i do to fix it? A1: -- The filter (or cotton swab) is not completely wet.The cotton swabs in the mini humidifier is used to absorb water. To see a better performance, we advise user to soak a filter stick to be wet completely before inserting to the humidifier and turning it on. A2: -- Check if the spring is still in under the filter.If the spring is missing, then the cotton swab cannot absorb water effectively, which will cause no mist even you hit the button. A3: -- Check if you usually add essential oils or other water treatment chemicals to the humidifier.It is better not add essential oils to the tank, which will affecting a humidifier's ability to spry mist. A4: -- The filter (or cotton swab) is used for a long time.The cotton swab will become dirty and hard if used for a long time which will cause the humidifier produce less steam or even stop work; It is recommended to change the cotton swab every 1 to 3 months, depending on how frequently you use your humidifier and what type of water you use in the water tank. A5: -- Check if the usb cord is working in good condition.If not, replace a USB cable or a mini humidifier. A6: -- The humidifier is broken, or something