Description
A wide variety of models in varying attenuations, cup sizes and headband constructions. Many styles offer 3-position use: over-the-head, behind-the-head and under-the-chin with slightly varying NRRs.
A wide variety of models in varying attenuations, cup sizes and headband constructions.
A wide variety of models in varying attenuations, cup sizes and headband constructions. Many styles offer 3-position use: over-the-head, behind-the-head and under-the-chin with slightly varying NRRs.
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