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The little light and beep actually help me zero in on the knot instead of just guessing where it hurts. The hand grounding pole seemed like an odd extra at first, but it keeps the readings steady when I'm working on my calf. Two tips in the case is a nice touch too.

I was skeptical about the spring probe, but the uniform pressure it applies makes finding those knotted spots almost too easy. The audible beep paired with the light lets me actually pinpoint where to press without guessing.

The sound feedback is a game changer—I can finally tell exactly when I've hit the right spot without guessing. The spring probe applies consistent pressure, and the whole thing fits easily in my palm at 6.5 inches.