I haven't done any recording with the Radioshack headset mic. I play live with it about 3 hours a day. It gives a very hot signal. The vocal harmonies sound very good too. Since the vocal harmonies when scrutinized closely don't sound like real human voices, I use them to fill in the sound. I don't turn them up too loud. I've been very pleased with the Radioshack mic.

I wanted to ask Cliff about "I have two AKC410Cs with battery pack." What mic is this? What is the battery pack? I might be interested in other headset mics if they have a battery preamp. The great thing about the Radioshack preamp is that it's so micro, it's practically part of the input cable.

One other thing I'll say about the Radioshack mic, is that the cable is ridiculously long. It is a cable to accompany a 1/8" plug, but the mic comes with an adapter. I have two mics. With the first one, I unraveled the cable (removing the twist tie) and I had to unknot it every time I performed. What a drag. With the one I've been using every day, I kept the twist tie on and it's still plenty long to perform with. I can even stand up. I just can't walk around the room. Good luck.