Headphones are used to keep your music devices volume only to yourself. It makes your music device volume better. There is a button in your headphone where you can increase or decrease the volume. The buttton also help you to pause and play and skip the tracks. The headphone technology is also increased. They are making headsets more fancy and better. The main problem is, it can cause hearing problem if you listen your music loud and you can't hear if someone call's you unless they have to come close and yell.