Does what it is supposed to. Matches almost perfectly with the CM25 microphone. The rubber bands securing the mic are a little looser than I would like, but they barely fit enough to prevent slipping. The filter itself is really very good - better than I expected for the price. The frame that holds the filter media is cheap plastic that doesn't feel strong at all, but I don't think that's a problem. The frame doesn't really work hard enough so it needs to be made from a stronger material. Making it out of metal would only add weight, and then those rubber bands might not hold it in place as they hardly work the way it is. The attachment of the rubber bands to the plastic frame could be better. That's probably the only downside I find - it's very easy to accidentally tear the rubber bands off the filter frame when fitting or adjusting the filter. They seem like they'll probably last a while, they're o-rings rather than rubber bands. Overall I'm happy with it and I think you'll probably have a hard time finding the best in this price range.
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