PRD-000375
Smooth, S oft and having a tapered surface thus giving additional
Comfort -Made of Hypo-allergenic Poly urethane Foam material Attenuation:
Mean attenuation data measured as per ANSI S319-1974
- Provides a mean attenuation of 29db
Provide an attenuation of 44.4 dbw hen measured at 8000 H z Frequency
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