Why is there 2 descriptions on my iPhone, the 2 describes in parenthesis

Your phone has a name; you can see it in Settings/General/About. Apparently your phone’s name is “iPhone”, and there are other iPhones in the vicinity, so it adds a number to differentiate them. The easiest solution is to tap on the current name and change it to something unique. You can be creative; for example, my phone’s name is “Don’t Panic”.