PM-222U
The paging microphone shall be moving coil noise-canceling type for high noise environments.
The microphone shall be balanced with sensitivity of -47dB (1k Hz 0 dB=1 V/Pa), impedance of
600 ohms, and frequency response of 100 to 10k Hz. Cable shall be 2-core shielded cable, plus
2-core cable connected to switch with length of 6.5” when extended. The talk switch shall be
short-off type with lock. A mounting bracket shall be included. Finish shall be gray ABS resin.
Dimensions (W x L x D) shall be 1.73” x 6.3” x 1.49” and weight shall be 7.0 oz.

The paging microphone shall be TOA model PM-222U.