Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Used with GoPro HD Hero 2...

I got this mic specifically for my GoPro HD Hero 2. The added stereo sound is nice, but all the audio has a constant hiss (especially when shooting a quiet setting -- probably due to some amplification or the like), for the most part, it is removable in post, so it isn't that big of a deal. The over all quality of audio is miles beyond what GoPro has supplied in their product. It's also a bit quiet in certain situations.Another problem is that if someone breaks wind in the room next to where you're recoding, the microphone pops and cracks (obviously a bit of an exaggeration here), but that to say, there is exactly zero pop filter on this, and any air movement will pick up immediately on it. I purchased the smallest wind muff (a dead kitten) I could get to put over the top of this for the majority of it's use.Overall, for this price range, it does a pretty good job, and with the addition of the dead cat/kitten it can suffice in many settings.