Automatic Shutdown Without Water: The diffuser that does not contain any harmful substances ensures that it is suitable for anyone. When there is no water, the humidifier will automatically shut down to protect the safety of you and your family. Enjoy Your Leisure Time: Whenever you feel tired, turn on the TV, play games, or read a book, you could use essential oil diffuser spreading elegant fragrance in the living room. Improve Sleep Quality: The diffuser that does not contain any harmful substances ensures that it is suitable for anyone. Light and mist features can be used independently according to your needs. Comfortable and Quality Life: Perfect for home, living room, bedroom, office, yoga room, and other places you like, especially for those who love life, it can complement all the decorations. Package Includes: 1 * LED Aromatherapy Diffuser 1 * USB data cable 1 * User Manual Notes: - Essential oil is not included in the package. - Tap water is the best choice. - If the water added over max line, the mist will be very thin(less water, more mist). - If the ultrasonic wave chip was polluted, it may cause error action or default. - Please don't touch the internal ultrasonic wave vibration board inside of the water tank directly with your hands. - To prevent any unpleasant odor and promote the efficiency, Please regularly clean the water tank with citric, sodium bicarbonate or vinegar.