Speak, Pc!
A computer microphone is useful for a number of personal and business reasons. You may want to sing along or talk along and record, you may want to make your phone calls over the Internet. The latter can be a considerable savings as many of these calls, if within your own country, are free.
A computer microphone plugs into your computer's sound card directly. If you want the expansive features the more advanced computer microphone and use can offer, get one that that will work with a voice modem.
If your computer system did not come with a computer microphone there are a number of retailers such as electronics stores that can sell them to you. Or order them online and have them delivered right to your door. You can have a lot of fun as well as business help with a computer microphone.
If you're an entrepreneur or business manager and some of your staff is going to need the use of microphones you may or may not need to purchase a computer microphone for each terminal. Most of the time you can do better with a phone system that has all the bells and whistles as well as quality microphones. You could purchase a small number of computer microphones and have them available on a temporary as needed basis.
One manufacturer makes a desktop computer microphone that is USB and can be used for either PC or Mac. The price varies considerably online, as you search the various vendors, retailers, manufacturer and auction sites. You could pay as little as $18 used or as much as $118 new. This computer microphone is purported to be extremely clear as well as easy to use. It works well for online chatting and games, speech recognition software and applications that require voice command. Its USB technology is digital and highly advanced.
Another brand of desktop computer microphone is especially designed for personal computers. The microphone is one directional, with an element to cancel noise. There are a number of these for sale from various vendors and private parties selling it new and used online. The lowest price is under $5, the highest just over $100. This computer microphone does not need batteries. It is white, with a 2000 ohm impedance and a sensitivity of 47 db. The range of its frequency response is from a low of 300 hz to a high of 10000 hz.