About this item Features 1. Simulate candlelight lighting effect, and at the same time as a very delicate night light; 2. It does not need any cotton filter, you can directly drop the essential oil into the water for aromatherapy; 3. Built-in smart chip, automatic power off when water shortage, very safe. Instructions 1. Add water to the water tank, please be careful not to exceed the water level; 2. Connect the power supply, you can use 5V1A adapter, power bank or computer USB interface; 3. Short press to turn on the spray, long press to turn on the night light mode. 4. It is recommended to add essential oils. Please do not add perfume and cologne.