The Samson Audio C02s come as a pair of small diaphragm condenser microphones that are designed for use in the studio or for recording live shows.  I don't believe that they are sold alone and only come as a stereo pair.  The mics have a cardioid polar pick up pattern and come with both clips for the mics and a case.

OVERALL OPINION

Overall, the Samson Audio C02s are a good option for home studio owners looking for a dirt cheap pair of small diaphragm condensers.  While these definitely don't have the best sound quality out there, for a small home studio or project studio these will work fine for applications that require small diaphragm condenser like acoustic guitar or drum overheads.  They don't have the cleanest or the most crisp sound like a lot of other mics like this do, but they will get the job done in a lot of situations in small studio setting.  I definitely don't use these very often but I've used them a few times at a friend's home studio and while I can't say I was too impressed with them, for the price this is a great deal since you are getting two microphones at an incredibly cheap price.  Samson isn't known for making top tier microphones, but instead they offer well priced microphones for home studio owners.  I definitely can't say that I would recommend these to anyone who is a professional engineer or studio owner, or even for a well experienced home studio owner as the sound quality just isn't up to par.  However, they will get the job done for beginners who just want to get their feet wet with a new set of microphones or are looking to expand their microphone collection without spending much money at all.  I would definitely recommend this for those people looking for a cheap set of mics, but beyond that these aren't a viable option for high quality recordings.