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that way Both my wife and I can learn, do I need to buy another microphone?, where do I get that?

I called RS customer support with exactly this question. The Personal product can only be installed on one computer. However, that one computer can have five different users. The Homeschool version allows two installs, but each computer has its own user list, and the Homeschool package is still version 3, so it won't have the online features that are available with v4 (3 month free trial, about fifteen dollars per month thereafter) .