The Mahli Flaming Cauldron Ultrasonic Diffuser is a large, black plastic device designed for aromatherapy. It features a color-changing flame and is perfect for creating a Gothic-style ambiance in your living room. This oil diffuser is powered by a wall plug-in and is ideal for adults looking to add a spooky touch to their home, especially during Halloween. The diffuser includes assorted/mixed scents and is a unique addition to your home fragrance collection.