The Travel Aromatherapy Diffuser packs advanced ultrasonic vapor technology in a compact, portable design you can take anywhere. Enjoy your favorite scented oils on vacation, on your next business trip or even in the office. It diffuses scented oil without heat. Simply add water and 2 to 3 drops of your favorite essential oil. Ultrasonic vibrations diffuse the water and oil into the room for relaxing aromatherapy. Features a blue LED mood light, travel pouch and auto shutoff timer (1 or 2 hours). Essential oils available at SharperImage.com.