This is a ghost box app. It's a haunted object in which it is possible to contact spirits.

It allows us to call the dead from our own device. It has been used by professionals and enthusiasts, both for entertainment and to try to contact the dead.

It is possible to call the dead with the help of a ghost box app. 

The best way to use it is to turn the slider up until you hear voices. 

It is necessary to keep in mind that the results may be different depending on the time of the day, and the state of the medium.