1. VIVID COLORFUL CYCLING LIGHT & NIGHT LIGHT - This cool mist humidifier has a VIVID colorful Cycling light setting creates a peful ambiance while delivering a soothing mist. It offers relaxation for you. The night light could improve your sping quality. 2. PORTABLE MINI HUMIDIFIER & USB POWER SUPPLY - Portable and small design is easy for you take to y. The USB Power Supply compatible with device USB port which ensures it can be used in bedroom, office, car. 3. QUIET - ensuring operation. This humidifier wont bother you while sping and working. It can effectively moisturize dry skin and help you reduce skin peeling. 4. ONE BUTTON CONTROL - The portable USB humidifier 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. 5. TWO SPRAY MODES & AUTO SHUT-OFF - This humidifier has two mist modes: Continuous and mittent mode. On continuous mode, it will automatically shut-off after 4 hours. On mittent 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 humidifier being damaged in the absence of water. You can use it at night without worrying about safety.