Audio-Technica Condenser Microphone (U857Q) Ideal for conference centers, boardrooms, courtrooms, houses of worship, and other installed applications, the U857Q is designed to plug directly into a panel- or desk-mounted XLRF-type connector. This cardioid condenser quick-mount gooseneck microphone offers unsurpassed immunity from radio frequency interference thanks to Audio-Technicas UniGuard innovations. The 14.47 long microphone features an ultra-flexible small-diameter gooseneck and accepts interchangeable elements, available in cardioid, hypercardioid, omnidirectional and UniLine line cardioid polar patterns. Equipped with self-contained electronics, the phantom-powered microphone also offers an 80 Hz low-cut UniSteep filter that reduces pickup of low-frequency ambient noise. Features: Designed for high-quality sound reinforcement, professional recording and broadcasting Superior off-axis rejection for maximum gain before feedback UniGuard RFI-shielding technology offers outstanding rejection of radio frequency interference (RFI) Easy-to-adjust, rugged, small-diameter, alternating gooseneck with virtually no memory permits quick positioning into desired shape UniSteep filter provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality Self-contained electronics eliminate need for external power module Accepts interchangeable elements to permit angle of acceptance from 90 to 360 Two-stage foam windscreen yields dramatically improved resistance to P-pops and other breath blasts Quick-mount design with 3-pin XLRM-type connector insert at base plugs into any standard XLRF-type surface or cable connector Included shock mount attenuates noise, shock and vibration transmitted through the mounting surface Specifications: Element: Fixed-charge back plate, permanently polarized condenser Polar Pattern: Cardioid Frequency Response: 30-20,000 Hz Low Frequency Roll-Off: 80 Hz, 18 dB/octave Open Circuit Sensitivity: -39 dB (11.2 mV) re 1V at 1 Pa Impedance: 250 ohms Maximum Input Sound Level: 139 dB SPL, 1 kHz at 1% T.H.D. Dynamic range (typical): 115 dB, 1 kHz at Max SPL Signal-to-Noise Ratio: 70 dB, 1 kHz at 1 Pa Phantom Power Requirements: 11-52V DC, 2 mA typical Switch: Flat, roll-off Output Connector (Power Module): Integral 3-pin XLRM-type Dimensions: 14.37x0.48x0.74" / 36.49x1.21x1.87 cm Weight: 5.1 oz / 144.58 g