The FireBallV, with a cardioid pickup pattern for isolation and feedback control, is equipped with a VLM diaphragm for natural sound reproduction with exceptional transient response. Designed for harmonicas (both diatonic and chromatic) and beatbox, the FireBallV has the added feature of a volume control knob. Clear, accurate and capable of handling SPLs in excess of 140 dB without distortion, the FireBallV is ideally suited for both live stage and recording applications. The FireballV come with a wide frequency response of 50 Hz - 16 kHz and is lightweight, compact and comfortable to hold. Because the FireBallV is a low impedance microphone, when applying with a guitar amplifier, a high quality, low-high impedance transformer is required. Transducer Type: Dynamic Frequency Response: 15 Hz - 16 kHz Polar Pattern: Cardioid Output Impedance: 150 ohms Sensitivity: 1.5 mV/Pascal 1k Off Axis Rejection: >23 dB Maximum SPL: >140 dB