1. Compact Design: This portable humidifier features a sleek, cylindrical shape perfect for small spaces like bedrooms, offices, and cars. The portable USB humidifier is very easy to operate. One-touch control of all functions, just press a button to set the mist 2. Dual Nozzle: This mini humidifier has 2 modes. The dual nozzle design allows for wide mist dispersion, efficiently humidifying the surrounding area. When you press the button for the first time, it will spray continuously in 2 nozzles. When you press the button again, it will spray alternately (3 seconds each) 3. Warm Night Light Mode: Long press the power button to turn on/off the night light, and the soft warm light creates a soothing atmosphere; it can be used in single night light mode or with humidifier spray mode at the same time; The working indicator light is always on. It has a low-brightness night light and real-time working status function at night (cannot be turned off) 4. Water Lack Protection: Built-in water level sensor feature automatically shuts off the device when the water level is low to prevent damage. And the seal is strong,no longer afraid of pouring liquid to leak in accidence