What are the clear dots on the right side of iPhone screens?

I keep seeing people with a dot on the left side of their iPhones. It can do stuff like lock the phone. I have never seen this before and I was wondering if it was a jailbreak feature.

It's for people whose home button doesn't work it can be added to a phone by:
1) go to Settings
2)go to General
3) go to Accessibility
4)Click on Assistive Touch

  • Screen of my iphone is showing vertical lines on the right side? The screen of my iphone is showing vertical lines on the right side. The left side seems to work ok for example when I try tu unblock it slides only halfway, I can play music and rewind but not forwardwithout unblock Siri can be accesed but doesn't respond.
  • Right side of my earpod won't work for music on my iPhone 5? It isn't broken because whenever I plug the new earpods into my laptop both sides work. They both even work on my iPhone when I'm in a call. When I listen to music, the right side, which is the remote side won't work, but the remote still works. The left works fine. Anyone else experiencing this problem? And how may I fix this? It works when i'm calling but not for music.
  • My left eye hurts when I move it from side to side and up and down? I was on my iPhone last night at 11:00 pm, and I was reading a small print book for class today. When I move my left eye left and right and side to side to look at something, they hurt. I have pretty bad eyesight, an wear thick-ish classes. Is this because I was straining them or?
  • My Iphone earphones work fine on the left side but on the right it's low? You see I thought the right side is just low but actually I figured out the sound is coming out of the horizontal back opening on the headphone. When I put it in my ear from that hole the sound is very good so is there anyway I can like transfer it back to the vertical part( the part where it ususally goes in)?