To Communicate with Spirits
This little spirit box can serve as a “Yes” machine (or you can say “Yes-No” machine). The point is if the answer coming from the discarnate spirit is “Yes” the blue light on the machine goes on.
Discarnate spirits are thought to be able to somehow alter (some say even to generate) the very weak magnetic field in a room. Let’s see what our friend Alby can say about it.