Low and high intensity for penetration depth.
L (Low) = 1–20 Hz
M (Medium) = 20–150 Hz
H (High) = 150–500 Hz
Danish and English instructions included.
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Low and high intensity for penetration depth.
L (Low) = 1–20 Hz
M (Medium) = 20–150 Hz
H (High) = 150–500 Hz
Danish and English instructions included.