I often use Apple’s ear-buds with my iPhone. I have an older pair that I keep in my car and one that I keep with me in my briefcase.
For easier storage, I found myself trying to re-wrap the headphones into the provided case.
After several failed attempts, I had to look up how to do it and came across this video explaining the process. Hopefully, this will help you.
What is/are your favorite headphones for iPhone?