Specifications:Product Dimensions: 4.5 x 4.75 x 4.75 inProduct Net Weight:8 ozAdvanced Ultrasonic Technology: 2.4 MHZWorking time: up to 10 hoursInput power: AC100-240V 50/60HZSupport Lack Water ProtectionSupport Freeze/Fix Light ColorHumidification Area: 65-82 sq.ft. Simple Operation: 1. Put this product on a horizontal position 2. Lift the cap of the humidifier, fill the water tank with purified water 3. Add drops of aromatherapy / essential oil into the water tank 4. Connect the humidifier to power source and press the power button to choose your desired mode Package Includes: 1x LEMON Aromatherapy Essential Oil Diffuser 1x Adapter 1x User Manual Warranty: 45 days money-back and 12-month, worry-free Guarantee! Note: 1. Do not add water over MAX line (less water, more mist)2. This is an essential oil diffuser, but you also can use it as a humidifier if you’d like. 3. Please use the Water-Soluble Essential Oils