Sennheiser ew 300 G4-HEADMIC1-RC-GBW (509948)
Wireless headmic set. Includes (1) SK 300 G4-RC bodypack transmitter, (1) SL Headmic 1 (omnidirectional, condenser), (1) EM 300-500 G4 rackmount receiver, and (1) GA3 rack kit, frequency range: GBW (606 - 678 MHz)