tuning fork (“angel tuner”)

Angel tuner

QUACKERY

Definition A set of tuning forks with alleged therapeutic value.

The tuners are based on the ninth octave of the overtone series. Angel Tuners allegedly open the passageway to angelic kingdoms. By vibrating one’s cranial bones, they allegedly open the gateway for spiritual insights and experiences, enhancing one’s connection to the universal energy for manifesting inspiration and a meditative state, as well as connections with higher powers, visions, and creative expression. 

References http://www.tunningfork-soundinstruments.com/angel-tuner-1100313.html

http://www.silvamentaldynamicscenter.com/ store/tools/angel-tuner