USB Colorful Humidifier MANUAL Spray hole USB input Switch Instruction Spraying Operation 1. Click the button, start to the continuous spraying mode; 2. Click it again to start the intermittent spray mode ( 3 seconds on, stop for 3 seconds); 3. Click the button to close. Night light operation 1.Press the button for 3 seconds to start the warm white mode of the night light; 2.Press button again for seconds to start the colors gradual-change mode; 3.Click the button lasting seconds to close night light.