1. VIVID COLORFUL CYCLING LIGHT & NIGHT LIGHT - This cool mist humidifier has VIVID colorful cyclic light settings that creates a peaceful ambiance while delivering soothing mist. It offers relaxation for you. The night light could improve your sleep quality. 2. MINI PORTABLE HUMIDIFIER & USB POWERED - Portable and small design is handy. easy to take with you. USB power supply compatible with device USB port ensures it can be used in bedroom, office or car. 3. CALM - secure operation. This humidifier will not disturb you while sleeping and working. It can effectively moisturize dry skin and help you reduce skin flaking. 4. ONE BUTTON CONTROL - The portable 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 mist. Press and hold the power button for 3 seconds to activate the night light and colorful light function. 5. TWO MISTING MODES & AUTO SHUT-OFF - This humidifier has two mist modes: continuous and intermittent. In continuous mode, it will automatically shut off after 4 hours. In intermittent mode, it will automatically shut off after 6 hours. It will shut off when the water level is low. 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.