Develop mental states of peak performance.Features the electronic music of J.S. Epperson and designer mixes of Hemi-Sync concentration frequencies for super-learning. The whole-brain states made possible by Indigo are perfect for any mental task requiring focus and concentration and may also be helpful for ADD/ADHD, dyslexia and other learning challenges.Zero in on the task at hand with this extraordinary composition whenever you desire to enhance your mental performance and creative flow. From The Monroe Institute.71 minutes. Learn more about Hemi-Sync, and get your FAQ answered.Learn more about Hemi-Sync creator Robert Monroe.Do not listen to Hemi-Sync while driving or operating heavy equipment, or with other devices that may influence brainwave activity. If you have a tendency towards seizures, auditory disorders, or adverse mental condition(s), do not listen to Hemi-Sync without first consulting your physician. Do not use Hemi-Sync with Dolby or other noise-reduction systems, as doing so will diminish the effectiveness of the Hemi-Sync signals.