Crystal Vibes Gemini Perfect Pitch D# and E Notes Quartz Crystal Singing Bowl #cg7dsm10ep15 37000101
D# Note Bowl
Note: D# -10 cents Octave: 4 Frequency: 309.1 Hz
E Note Bowl
Note: E +15 cents Octave: 4 Frequency: 332.9 Hz
Frequency Difference: 23.8 Hz (Beta Binaural)
Both ends of the Gemini bowl are Clear Quartz Crystal, 7 inches in diameter, connected at the base by a hollow handle, allowing for easy handling, without affecting the sustain of the notes.
Rim Thickness: ~2.2 mm
For more information on the 5 Main Brainwaves, you may visit the following link: https://www.silverskyimports.com/pages/information/delta-theta-alpha-beta-gamma-frequency-brain-waves.html