※ Tilting the unit significantly up, down, or diagonally may cause a rattling sound, as if something small is rolling around inside (this is a tabletop humidifier, so it shouldn't be too noticeable). ※ There is a manual, but the warranty certificate has been discarded. ※ The box will be wrapped in bubble wrap and a shopping bag for shipping! 【Product Description】 This is an ultrasonic humidifier with lights that shine in the shape of the moon and stars. The dreamy lights create a night sky atmosphere, allowing you to spend a peaceful moment before sleep. You can also use essential oils and aroma water, providing relaxation through both lighting and fragrance. It's a welcome item for relaxing settings such as bedrooms and living rooms.