Psychic Telephone
From Wikipedia, the free encyclopedia
The psychic telephone was an instrument invented by F. R. Melton of Nottingham, UK, consisting of a box containing a rubber bag connected with a pair of earphones from a wireless set. The idea was that, if a medium inflates the bag with her breath and then seals it, the bag takes the place of the medium and directs voices to be heard through the earphones in the medium's absence.
Harry Price subjected the instrument to a thorough test in the National Laboratory of Psychical Research. He concluded that it did not work.