Instruct: Classify Amazon reviews into positive or negative sentiment
Query: great noise reduction, especially for the price

got this at osh for $20 a couple weeks ago and couldn't be more happy. noise reduction is excellent and that's all that really matters. take them off slowly, though, because they create a tight bond to your skin and can suck your eardrums if you take them off quickly. my one apprehension about these is that the thin metal frame connects to the muffs with a piece of plastic. there is a potential for breakage there if you misuse them or treat them rough. jury is still out on how long they'll last on the jobsite... but as far as out of the box quality goes, these would be tough to beat.updated: 11/6/08 - still holding up to the jobsite in every way. great purchase overall. for in the field work where you'll be moving around a lot i'd probably recommend the more streamlined kind that hang around your neck and have earplugs on the ends. these are too bulky for those situations.