Rachael, Sennheiser also makes great headset mics. For your needs, wireless really isn't the way to go from an expense standpoint as well as system complexity. You just want the freedom of movement but while sitting. As for quality, headset mics have come a long way - with Countryman brand changing the game 20 or more years ago.

It's not just the few stars mentioned above that rely on them - try every single major theater production globally. A drummer relying on a wireless mic presents an entirely different situation.

The drummer is surrounded by sound making devices that easily overpower the human voice and will clip the audio compared to the voice. For drummer applications, you need a mic that is directly in front of the mouth, and not an omni pattern, to give the mic a chance over the snare and crash cymbals and toms.

The headsets that are used for theatre and other production normally have an omni sytle pattern so that they don't protrude in front of the mouth (for appearance). They are really pretty amazing given the small size. I don't know if you will find Galaxy audio at a local shop. The problem is that it seems like these are only available for use with transmitter/receiver. Getting a wired headset mic is starting to be a rare offering.