TelephoneStuff.com Astatic Omnidirectional Variable Line Level Output Button.. 210

Omnidirectional Variable Line Level Output Button Microphone with Limiting Circuitry. Features: - Adjustable Line-level output - Omnidirectional pick-up pattern - Integrated high-pass filter for improved intelligibility and voice articulation - Integrated limiter maintains near/far signal integrity - All-metal housing suitable for commercial applications - Internal audio limiter circuitry tames high sound pressure levels - Improves intelligibility by protecting audio signal from distorting sensitive recording circuitry in cameras and digital recorders - Integrated volume control located on side of microphone and is protected from tampering when microphone is installed - Integrated 150Hz, 6dB/oct high-pass filter attenuates unwanted low frequency energy - 8 to 18 VDC (70mA) required to power microphone (not included) - Shock-absorbing polymer bushings included - Mounting hardware included - Operating Principle: Condenser - Polar Pattern: Omnidirectional - Frequency Response: 120Hz -18KHz - Impedance: 50 ohms - Self Noise: 22dBA - Finish: Durable matte-white urethane