"Omnidirectional Dynamic Microphone, 1 DPDT Push-to-Talk Switch, 19"" Gooseneck, 2 3/4"" Flange and 6' Cable - Chrome" CAD - Dynamic - Omnidirectional - Mono The AMC Series of gooseneck mounted omnidirectional microphones are constructed of high impact ABS Plastic and are an excellent choice where cost effective rugged dependability and excellent intelligibility are required. AMC mics are available with momentary switches for single and dual zone applications. (Dual zone operation requires an external relay for signal routing). 1 DPDT sealed switch 19in.