I wanted to write a review because the reviews I read seemed a little confusing when deciding whether or not this product was any good. Simple answer is it works and it is good!
I have bought a few different mini cams because I am a collector and like the technology. I tend to buy from a few limited companies because there are some bad companies out there selling junk!
The good company I used in this case was Discountedforyou - I mention the company I bought from because it makes a difference when you're buying these kinds of products. To give you a good example: one reviewer mentions that the original instructions aren't well translated, and that is true, but Discountedforyou actually went the extra mile and added their own instructions which were great. And you can see from my other reviews that I am a real buyer and not simply plugging one company for the sake of it.
Ok now to the product:
The product I received came in a jiffy bag, saving packaging, and contained a 4gb memory card, a usb lead, extra instructions and the actual pen itself.
I charged the pen over night, and then the following day I put it on record until the battery ran down. I did this a few times in order to get the full potential of the battery. (fully charge, rundown, fullly charge etc about four times. I always do this with any of these types of cams - although the cam should work fine after a normal charge.)
The quality of the video and sound is very good. You can view the videos by connecting the pen to a PC via the provided usb lead. You just plug it in and the folder pops up. I use VLC player to view the files.
On testing I recorded well over an hour of video. The cam also takes still photos too.
The lense is just about the pen's clip, so you could wear it facing outward without anyone noticing. The function light are positioned at the back of the product, and would be facing you if you were using it.
To make this review even more helpful, here is a video clip of the pen. (Note that mine didn't come with a plug charger, but that is not needed anyway as it can be charged via the provided usb lead. The pen in the video appears to be the same one I received though)
(this video is NOT mine by the way, but thought it was useful because it showed the pen.)
I hope this review helps you in someway