Aromatherapy uses natural, aromatic essential oils from plants to help reduce anxiety, relieve stress, ease depression, reduce pain, enhance sleep and more. This stunning, color-changing, glass diffuser produces a relaxing light show with seven beautiful colors. (You can also choose a fixed color and set it to shine with or without the mist.) Simply add water and a few drops of your favorite essential oils (sold separately) to produce a cool, fragrant mist. Runs up to 6 hours and features a timer setting and auto shut-off. 74"L power adaptor cord included. Acrylic. 11 1/2"L x 9"W x 8"H.