Escape From The Room

This is the third and final round of investigation. Choose very carefully what you investigate.

Remember: one lock of the door has many tiny holes (barely 1 millimeter across) holes connected to it. One has a microphone attached to it. One has a slightly slanted hole with a picture of cheese and the word "with" next to it.

Your items to investigate are: an air horn, a golf ball, and a stuffed animal.