About this item 1. Quiet: It uses ultrasonic vibrations to turn water into mist, you will hardly notice this small sound. Add essential oils for a relaxing vibe. 2. Adjustable spray mode: Intermittent spray (30 seconds on/30 seconds off), continuous spray, you can refer to the picture or manual to adjust the mode you need. This humidifier will automatically shut off when the water runs out. Don't worry about damaging the device itself or causing danger to users. 3. Mini Portable: The product size is only the size of a lady's palm. (7.5*9.5*9.8cm) Our aromatherapy machine uses a USB charger, which is very convenient to carry when traveling, and can also be used as a car humidifier in the car. Make your travel as comfortable as at home. 4.7 LED Soft Colors: Designed with LED, the light is very soft, you can adjust and put in your favorite color. You can also set bright mode or dim mode.