Miniature installation button style condenser boundary mics for use in teleconferencing or voice lift sound reinforcement. Other applications include surveillance, ambient recording or audio observation. Improved RF immunity to greatly reduce susceptibility to radio interference from cell phones, PDA or similar two-way communication devices. Available in cardioid in black (201R). Metal nut/washer hardware supplied.
 
RF Resistant Mini-Boundary, Condenser Microphone
Operating Principal:Permanently-Biased Condenser
Polar Pattern:Cardioid, Omnidirectional
Frequency Response:90Hz 17KHz, Sensitivity:-32dBV (25 mV) @ 1 Pa, Impedance:150 ohms
Power Requirements:P12, P24, P48, 2.4mA