you can use this to gauge how loud the place you are in is, or punish students for being too loud. Gauging: `there is a color chart with none, green, yellow, and red to show how loud it is. There is also a number on the side to tell how loud it is. The number, like the chart, will change color if it gets loud. Punishment: Press space to toggle the punishment. when the punishment -an extremely annoying sound- is on, you can change how loud it must be for it to activate. if the 1-100 scale is not enough for you, you can use the arrow keys. the up and down arrow keys change the required loudness by 10. The left and right arrows change it by 1.