The Heil Sound PR-30 is a professional dynamic microphone designed for applications that require a smooth, flat output from a wide frequency response (40Hz-18kHz). Whether it's commercial broadcast, studio recording, or live sound reinforcement, the PR-30 mic can handle it. A specially designed magnet structure and large, aluminum 1-1/2" low-mass voice coil assembly make this possible. In addition to a carefully wound and placed humbucking coil, the components of the PR-30 are engineered to minimize external noise and provide pure articulation. A unique dual pop screen design ensures that breath blasts never hit the diaphragm directly. The result of all this is a perfect representation of the voice that is virtually unpolluted by external noise..