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and 18 inches of tubing found in most Anesthesiologist applications
ER-9 Provides flat 9 dB sound reduction through the mid range and 15 dB in the highs (Best for vocals
Whether you operate a single location clinic or large multi-provider clinic
Maximum consumption: 25 Watts
supreme flexibility and extreme simplicity of use make Piano the ideal choice for clinics and hospitals
Etymotic Musician Filters Filter NRR:ER-9 and 18 inches of tubingThis product page is for the Etymotic Filters only. The Etymotic musician ear plugs with filters, or buttons, have a diaphragm which functions as an acoustic compliance, while the volume of air in the sound bore of the custom ear mold acts as an acoustic mass. The combination of the two produces a resonance at approximately 2700 Hz (as in the normal ear), which results in smooth, flat attenuation. Etymotic Filters & Reduction Levels ER 9 Provides flat
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