Mastermind Esprit Manual by Synetic Systems
The Mastermind Esprit was manufactured by Synetic Systems (now known as Mindplace) in the early 1990’s. It was an awesome portable light and sound mind machine with six sessions created by the late Rayma Ditson-Sommer, Ph.D. This system was one of the most popular mindmachines sold and one of our all-time favorites.
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