Features: [Keep Your Healthy]The USB mist humidifier is lightweight easy to carry, helps you to combat dryness, and keep your skin moisturized all the time. [Night Light]The portable mini USB humidifier has 7 color night lights for you to choose from, it can create a warm and romantic environment. [USB Powered]Built-in 2000mAh high capacity rechargeable battery, this wireless humidifier can be used corded or cordless. [Auto Shut Off]The humidifier will automatically power off when the water level of the water tank is lower than the water level probe in the water tank. [Large Capacity]320ml large water tank allows to run up to 12 hours, no need to add water frequently, moisturize for a whole night.