$200 for just a mic is reachable, but if you include the receiver and transmitter, a good one will cost about $500 or so. Might want to check with Frank.
I absolutely love my Shure PGX with WG30 wireless headset. It is extremely comfortable and sounds crystal clear.
_________________________
Live: Korg PA4X/EV Everse 8s/Senn 935/K&M stand
Studio: Korg PA4X/Yamaha DGX670/Nord 6D73/Boss BR900CD/Tascam DP24SD/MTM Iloud/Sony C80/AGK 214/ATEM Mini Pro switcher/K&M stand