Main performance
100 Hz ~ 500 Hz as the reference of the testing sound source:
Outer diameter of auscultation head > 35 mm, damping ≤ 16 dB
500 Hz ~ 1000 Hz as the reference of the testing sound source:
Outer diameter of auscultation head > 35 mm, damping ≤ 20 dB
We can do OEM
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