Consciously crafted with fragrance infused with essential oils and ceramic heating technology, this product is Glade's most adjustable warmer ever. Expertly designed to create a continuous ambience with longer lasting fragrance, you can use it to perfect the energy of every room. Simply plug it in, choose your settings and enjoy. Adjustable to control fragrance intensity to any room. Warmer holder is for use with any Glade® Plug-Ins® Scented Oil Refills only (sold separately).