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ACS ER Custom Earplugs

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ACS custom made ER-Series musician earplugs provide a generally flat frequency response, so it’s just like turning down the volume without sacrificing any of the definition of what you want and need to hear. ACS ER custom-fit hearing protectors produce the flattest level attenuating characteristics of any hearing protector in the world. Each earplug is made for your ear only. Please contact us if you would like advice on which is most appropriate for you.