Functional : Easily switch between spray ring mode and direct mode with a simple press of a button, and control the ambient light with just a few short presses Aromatherapy Mist Maker: a relaxing atmosphere with this ultrasonic humidifier, for adding essential oils for a fragrant experience Train Essential Oil Diffuser: Enjoy the benefits of essential oils while on the go, with a compact that fits perfectly in your car or train compartment Air Humidifier with Ambient Light: Set the mood with warm or blue ambient light options, and enjoy the soothing mist created by this ultrasonic humidifier Quiet Ultrasonic Diffuser: Experience the benefits of aromatherapy without the noise, thanks to the quiet of this essential oil diffuser