The C519 clips onto the bell of a trumpet, saxophone, trombone, tuba, or any other wind instrument. Its tight cardioid polar pattern makes the C519 an ideal tool for use near monitor wedges, and its flat frequency response delivers a natural, powerful, and clear sound. The C519 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.