CAD Audio 119S-19 Cardiod Dynamic Microphone w/DPDT Push to talk Switch 2 3/4in Flange

For fixed paging applications such as fast-food restaurants, supermarkets,
gas stations, busing and transportation, commercial facilities and dispatch.
Cardioid directional pick-up for maximum rejection of feedback or unwanted
ambient noise. Should require up-close, focused attention by user.