Shure 450 SERIES II Voice Communication Microphone

Designed for indoor communication systems — fixed station — including police, fire, transportation, restaurant, and industrial applications Shure 450 SERIES II Features: Frequency response tailored for voice communications Switch-selected dual impedance output PTT switch that can be locked “On” for hands-free operation Four conductor, shielded, bare-ended (no connector), straight cable Adjustable height Does not require DC power for operation Shure 450 SERIES II Specification: Type Dynamic Frequency Response 200 to 5,000 Hz Polar Pattern Omnidirectional lmpedance 225 to 30,000 ohms Output Level HIGH @ 1,000 Hz: -35.0 dBV/Pa* (17.8 mV); LOW @ 1,000 Hz: -57.0 dBV/Pa* (1.4 mV) *1 Pa = 94 dB SPL Made in China.