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High Fidelity Hearing Protection |
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Button Colors
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| Clear |
Beige |
Brown |
Red |
Blue |
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Interchangability
Identical dimensions. Change buttons for different listening conditions.
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Earmold
styles
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| Standard |
Partially countersunk |
Countersunk |
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The ER family of earplugs is covered by U.S. Patents #4,852,683, #5,113,967 #5,887,070.
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