... ,household,portable used. 3.USB interfaces. Detailed Product Description Type Ultrasonic HumidifierInstallation Tabletop/PortableCertification CB,CE,CSA,EMC,EMF,GS,LFGB ... ManualColor Black,Green,Pink,Purple,YellowFunction Ultrasonic Wave Function Ultrasonic Humidifier:1.With Essential Oils;2.Ultrasonic Wave;3.Portable& Car&Household Use ...