Safe One-Touch Design - Child Humidifier has CE and RoHS certifications to ensure the product is free from harmful chemicals. A single button controls functions including turning the humidifier on and off, as well as turning on the night light and switching between continuous/flashing spray modes. Ultrasonic technology UPDATE: The ultrasonic humidifier delivers microns of water mist at 2.4 million high-frequency oscillations per second to hydrate skin and relax eyes. 300ml capacity can work for 6-10 hours (continuous/flashing spray), enough for 20 square meter room. Sit back and enjoy work, study, yoga, relaxation and spa treatments. Friendly reminder - Dimensions: 8.8 x 8.8 x 14.3cm. Weight : 160g - Batteries are not included. Please make sure the USB cable is always plugged in when in use (to maintain power). Enhance your living space: Let the soothing aroma and soft light fill your home, the DC silent atomizer film reduces noise to 26 decibels, and the humidifier's 7 different color LED lights will change constantly. The comfortable environment will make you forget all your worries while giving your baby a quiet and sweet night for a good sleep. Wide Use and Portable: The small shape makes this mini humidifier more portable, you can put it in your backpack or luggage (also perfect for car cup holder), it can be used in a variety of environments, such as children's room, home, living room, office, car , etc.