I just got the gopro wide angle, and I was scrolling through just kinda playing around with it getting some random vids of myself (in my new first drop Hoodie!!!!). Anyway I seen a part where it showed all these different letters and one was like "pes". Could someone tell me what those mean. And I know that you are supposed to put it into LO sound level, I also have no clue how to do that. So if someone could help this newb out, that would be awesome!