Read an article recently, discussing the validity of these devices. Anyone ever purchase one? They're cheap on amazon.
Apparently, according to ghost hunting experts, voices in the spirit world come in at a lower frequency than most people can hear clearly, so these devices are a must for those interested in communicating with the dead.
Apparently, according to ghost hunting experts, voices in the spirit world come in at a lower frequency than most people can hear clearly, so these devices are a must for those interested in communicating with the dead.