in this video someone has performed a test recording which shows the audio and video quality of a spy pen camera video recorder.  As you can judge for yourself from the video, the recording fidelity is not bad at all.  It’s actually pretty damn good.  You can see several commenter’s on YouTube had the same impression.

The only question, as someone posed, which the author of this video neglected to share was what brand and model of spy pen camera they used to record with?

You can see how easy it is to use out of the box.  I have to hand it to the kid for a quick and clean yet thorough demonstration.  He actually sounds fairly tech savvy. Accept for the fact that he hot-glues the USB to the device …  (doesn’t make you feel too good about the pen)

I wonder how old he is and what he uses his spy camera for?

The MP9 Digital Pocket Video Recorder current online retail from anywhere between $25 – $80. Be sure to comparison shop for this camera if you plan to pick one up.

I recommend starting with a search on Google Products.  I have not used the product personally, this is just a review I found entertaining.