These ear protection do a good job at reducing sound to safe levels. They are relatively comfortable to wear and seem like they would adjust to a variety of head sizes. They clamp a little harder than I would like, but without that they probably wouldn’t block as much sound. They also fold into a fairly compact space with the ear cups covering each other which helps keep them clean. I don’t have any equipment to measure sound levels but I’m suspicious of the 34dB reduction based on past experiences. Still, I think it does a good job of reducing sound levels and it’s a good for the price.
They are currently available for $13.95 from Amazon: http://amzn.to/1RGgGtZ
Full Disclosure: I received this product for free or at a discount in exchange for my honest review.