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There's a business idea. Noise cancelling so good you can listen to tunes while you're jackhammering.

I've never used a jack hammer. What is your line of work called? Paver? Masoner?

About 130 decibels is normal so it would need to be next level metal to cut through that!

I’m a semi-skilled contractor and mainly help out on small residential projects job-to-job.

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