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I'm going to be tearing up a sizable cement area on my property, and I'm looking to invest in a durable set of noise cancelling headphones that will protect my ears from the noise. Obviously it won't be silent, but it would be nice to have something that would dampen the sound of a jackhammer a bit.

However, I have not been able to find options that are non-electric, which is what I would prefer. Are such items available?

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Noise cancelling headphones work by monitoring the ambient noise, inverting it, then playing the inverted signal over the top of the ambient, so the net result is a near-zero noise level. I don't think there's a way to do all that without electronics, so the answer is most likely no. – Niall C. Aug 15 '12 at 20:23
@michaelbarnes, this was closed because it falls in the "shop for me" category. – BMitch♦ Aug 15 '12 at 21:17
all you need to protect your hearing is a good set of muffs with a high NRR (noise reduction rating). cheap and widely available. – mac Feb 7 at 22:05

closed as off topic by Vebjorn Ljosa♦ Aug 15 '12 at 20:14

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