which iPods allow microphone attachment for recording?

<p>My D uses a recording device called iRiver. We purchased it at Circuit City and the website <a href=“http://www.iriver.com%5B/url%5D”>www.iriver.com</a>. It works great for recording her voice lessons and she can play it back on her iHome. It is not compatible with a Mac format in terms of downloading but stores the files for playback in the headphones or through iHome. The less sophisticated versions of the iRiver are very inexpensive.</p>