AKG / Crown PZM10 Professional Flush-Mount Boundary MicrophoneThe PZM 10 and PZM 10LL, part of the Pressure Zone Microphone line, are designed for security, surveillance, and conference table use. Since they do not look like microphones, they are inconspicuous. Each mic's tubular housing mounts in a 25 32 inch diameter hole in a ceiling panel, wall or table. The PZM 10 has a mic level output and a 3 pin XLR type connector for easy plug in installation. The mic requires 12 to 48 V phantom power. Like other