Crown Audio PZM-20RMG is a high-quality boundary-layer microphone designed for permanent sound installations. It features a hemispherical pickup pattern, making it ideal for conference or interview areas. The PZM-20RMG's low-frequency response is noticeably improved over podium mounting, as the table or podium surface becomes a direct extension of the plate. It includes small projections on the plate that prevent papers from sliding under the capsule, and its sensitivity is high enough that covering it with one or two pieces of paper will only faintly attenuate the sound.