The CAD Audio 201R High Performance Cardioid Electret Condenser Installation Microphone is a designed for panel, table, or ceiling mounting in professional environments such as teleconferencing, courtrooms, and broadcast setups. Its half-cardioid pickup pattern above the mounting surface ensures clear, focused sound capture while minimizing background noise and feedback. With enhanced RF immunity and rugged construction, the 201R is built for long-lasting reliability in critical applications. Product Specifications: Generating Element: Electret Condenser Polar Pattern: Unidirectional (Half Cardioid above mounting surface) Frequency Response: 100 Hz – 15 kHz Sensitivity: -36 dBV (16 mV) @ 1 Pa Impedance: 150 ohms Self Noise: < 29 dB (A-weighted) Maximum SPL: 129 dB (1% THD, 1 kHz) Power Requirements: P12, P24, P48 < 3 mA Connector: 3-pin male XLR Finish: Durable Black urethane Dimensions: 1.1" diameter, fits 0.81" mounting hole (0.94" with shock isolators) Net Weight: 0.14 lbs. RF Immunity: Exceeds ENT55103-2, E1, E2, E3, E4 RoHS Compliant: Yes Shipping Weight: 1 lbs. Shipping Dimensions (LxWxH): 4 x 4 x 1.5"