17-18th century
It is not an easy task to find a Void Yoni bowl these days. The value of the instrument you are looking at is not only in its rareness but the quality of the sound.
It has a balanced grounding combination of tones.
A perfect instrument for any kind of practice.
It sings easily both - the low and the high tones.
Excellent instrument for both beginners and advanced level practitioners.
Frequencies: 256-259Hz (C4-3Hz). Monaural beats range Delta. 740-749Hz (F#5 Concert pitch). Monaural beats range Alpha.
Other frequencies: 1397Hz, 2199Hz, 3061Hz.
Includes complementary singing bowl cushion, striking mallet S2 and rubbing mallet R2.