It's acoustic electric 6 string. With onboard preamp

You can use jammr with a microphone. Or you can use a cable from your guitar to the soundcard.

I suggest using a cable because microphone tend to pick up background noises and sometimes feed back. Be sure to use headphones if you decide to use the mic. That way the mic will not pick up the sound coming out of the speakers.

If you need help getting set up, please post the details of your gear: sound card and guitar (preamp) model names.