Thanks again for the great longbox! I think I could break glass with that thing. It is a SCREAMER!! Exactly what I was hoping for, super high pitch, volume to spare, with just enough rasp when you want it.
If you watch this video on a computer you can hit "ctrl" +"alt" + "down arrow" keys to flip your screen. When you are ready to flip the screen back upright, you can hit "ctrl" + "alt" + "up arrow" keys.