Crystal Vibes Gemini D# and E Notes Quartz Crystal Singing Bowl #crystal7dsp5em15 37000058
D# Note Bowl
Note: D#+5 Octave: 4 Frequency: 312.1 Hz
E Note Bowl
Note: E-15 Octave: 4 Frequency: 327.0 Hz
Frequency Difference: 14.9 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: ~3.1 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