My phone plays sound outside my headphones when they are plugged in

When I plug my headphones in I can still hear the sound come out through the headphones but it also comes out through the top of the phone somewhere. Not the ordinary speakers at the bottom but it seems like it's coming out of the black thing under the front facing camera above the screen. This happens when I'm listening to anything like music, YouTube, and Netflix. I try to unplug and replug the headphones to see if it will be any different but the sound still comes out of the top just softer. Can anyone help?