You can easily shoot gorgeous fireworks photo with the application. How to use. (1) Push the shooting button. (2) Fireworks will appear more and more, so stop at a good timing. Tips to take well. - Please fix iPhone firmly by putting it somewhere so as not to move. It is best to have a mini tripod. · Fireworks appear clear in setting a little darker. [Application Specification] Photo & Video shooting 5 times zoom Adjust brightness (sensitivity) Focus switching: Fireworks focus, Auto, Manual Bulb shooting: up to 30 minutes