A perfect night light: With the 7-color LED light function, it can be used in different environments, so you don't have to worry about your baby's sleep quality in the dark. It can also be used as a desktop decoration to create a warm atmosphere. One-button control: The portable USB humidifier is very easy to use. One button controls all functions. All you have to do is press the on/off button for 1 second to control the mist. Press and hold the power button for 3 seconds to activate the night light and color light functions. Ultrasonic Quiet: The humidifier operates very quietly at less than 20dB. You will never be disturbed by bubbles and engine noises. You can enjoy peace and quiet while sleeping, working or driving. Two spray modes and automatic shut-off: This humidifier has two mist modes: continuous mode and intermittent mode. In continuous mode, it automatically turns off after 4 hours. In intermittent mode, it automatically turns off after 6 hours. So you don't have to worry about the humidifier being damaged due to lack of water. You can use it at night without worrying about safety. Mini portable design: And USB power - portable and small design is very easy to take anywhere. The USB power adapter is compatible with any USB port on the device, ensuring it can be used in bedrooms, offices, cars and bathrooms.