522 on August 18, 2015 | Marketing Team Voice Communication Microphone Dual impedance desktop mic suppresses unwanted background noise in public address/paging applications. Designed for indoor communication systems — fixed station — including police, fire, transportation, restaurant, and industrial applications. Suitable for high noise environments. Features Frequency response tailored for voice communications Directional microphone element 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 Applications Paging/Two-way Radio/Intercom Form Factor Desktop Model Line Other