Heil Sound PR 22 Noise-Rejection Microphone

The HEIL PR 22 microphone is a revolutionary dynamic cardioid microphone incorporating a large (1.125”) diaphragm, patent-pending ISO BAND isolation mounting that offers greater articulation throughout its entire wide, flat, frequency range with very low handling noise. Additionally, noise directed at the rear of the mic is virtually eliminated through a combination of special porting & phasing plug design.