The C 519 clips onto the bell of a trumpet, saxophone, trombone, tuba, or any other wind instrument (e.g. didgeridoo). Room to move for the wind section at last! Its tight cardioid polar pattern makes the C 519 an ideal tool for use near monitor wedges, and its flat frequency response delivers a natural, powerful, and clear sound.The C 519 M features an integrated, switchable bass cut for adjusting the microphone's frequency response to your instrument's sound. The unique adapter plate A 400 allows easy attachment of the AKG pocket transmitters. Versions: C 519 M -- for external phantom poweringC 519 ML -- for use with the B 29 L battery power supply, AKG WMS Series bodypack transmitters, or the MPA V L adapter for external phantom powering.