Features Operates through a power outlet.Disperses a fine scented mist without heat or chemicals.Requires only tap water.Diffuses the benefits of essential oils.Humidifying power.Continuous diffusion for 6 hours.Automatic shutdown.7 different lighting colors.Creates a warm ambiance. Insctructions 1. Fill the diffuser with water up to the indicated line. 2. Add 3 to 8 drops of your favorite Naturiste essential oil. 3. Press the diffuser to turn it on and enjoy the benefits of aromatherapy at your fingertips.