This is a diffuser, no need for any cotton swabs, you can add non-corrosive essential oils to diffuse the aroma.Please make sure to use a 5V2A adapter for power supply, otherwise the circuit may be damaged.It is designed with the function of automatic shutdown without water. This aromatic oil diffuser will automatically shut down when the water is used up.When you feel tired, turn on the TV, play games or read books. You can use ultrasoundThe essential oil diffuser diffuses the elegant fragrance to the living room.The aromatherapy machine uses ultra modern marble patterns as decorative elements. It is best to use this lovely diffuser as a gift for friends, family and loved ones.Product Name: Flame Aroma DiffuserRated input: DC5.0V/1.0AWorking current: less than equal 900mARated power: less than equal 5WWater tank capacity: 180mlSpray volume: 15-25ml/hTiming shutdown: no water automatic power-off protectionProduct operation instructions: Aromatherapy function: add water to the water tank (do not exceed the water level), add an appropriate amount of essential oil, short press the atomization switch button to start the aromatherapy atomization; short press again to stop the atomization work.Lighting function: Short press the light switch button to turn on the flame atmosphere light; long press again, the flame atmosphere light brightness will increase by 30%; short press again; turn off the flame atmosphere light.Colour:blackMaterial:ABS/PP/Electronic componentsSize: 177 x 107 x 75mmPackage Contents:1 x Humidifier1 x USB power cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.