The Ovilus is an awesome invention that has thousands of words programmed into it, reads electromagnetic fields (a.k.a. air), and assigns a number based on how spooky the air is. The device then finds the word associated with this number and says it out loud.
The Ovilus most apparent use is in the field of paranormal investigation (obviously) and allegedly can tell you what kinds of conversations ghosts are having (???)
Unfortunately, people have put multiple Ovuli (yes) next to each other and have found the devices can’t seem to agree what the ghosts are saying, as they blurt out random words and phrases with no synchronicity.
Alas, we are no closer to proving that your dead Grandma can control electromagnetic fields from beyond the grave. Maybe next time.