AKG / Crown PZM11 Professional Flush-Mount Boundary Layer MicrophoneThe PZM 11 is a pressure Zone Microphone designed for conference room, security and surveillance applications. It can be mounted in the ceiling or wall in a standard electrical outlet box. Providing excellent intelligibility, the PZM 11 is designed to look like a light switch so as not to draw attention. The PZM 11 has a mic level output and is powered by 12 48 V phantom power. Like other Pressure Zone Microphones, the PZM 11 utilize the Pressure