... produce numerous vacuum air pockets inside and outside the fat cells, robustly impact fat cells to generate introverted blast and disintegrate triglyceride ... audible to the human ear. Normal hearing can hear the sound waves of 16-20 kHz (KHZ), lower than the 16 kHz ... relieve muscle pain(4) To tighten muscles of the arms, legs, thighs, buttocks, lower back, abdominal muscles, re-shaping body contour.( ...