When I was screwing my headphones on this evening my threads being new on my phones were hard to screw on. During the process of putting them on the Headphone Jack turned a little bit. The male end going into the detector. It didn't move much just a touch, but I was worried that this might make it not water tight anymore. Does that plug have an o-ring on the back side of it? Just was concerned. Hopefully one of you guys can give me an answer if I should still be water tight.