Fountain fireworks are pyrotechnic devices that emit a continuous spray of sparks and various colorful effects upon ignition. These fireworks are designed to resemble natural fountains, with sparks and lights cascading downward. Fountains are typically ground-based and come in various sizes, producing a range of effects such as sparks, crackles, whistles, and colors. They are known for their visual appeal and are a popular choice for both backyard celebrations and larger firework displays. Fountains are generally considered low-noise fireworks, making them suitable for a wide range of events where a dazzling but quieter display is desired.