Wireless and Inline Remotes. Our Mist maker creates fog in instantly. Uses ultra-sonic sound waves, no chemicals and fish safe. Adds an exotic touch to any indoor fountain. Simply place in fountain or placed it in a bowl, plug it in and instantly the free flowing fog creates an atmosphere of mystery and intrigue. Add a few drops of essence oil to produce a beautiful aroma to immediate surroundings, thus, enhancing the mood. Ultrasonic technology eliminates the need for any chemicals. The dry-ice effect without the dry ice! Completely safe!