Our Products ELECTRET CONDENSER MICROPHONE UNITS ECM-30 SPECIFICATION: DIRECTIONALITY: Omni Directional SENSITIVITY [0db=1V/μbar.1kHz] VCC=4.5V, RL=1KΩ: A:-55± 3dB, B:-61± 3dB, C:-67± 3dB OUTPUT IMPEDANCE: Low FREQUENCY: 50Hz~ 13KHz RANGE OF OPERATING VOLTAGE: 1.5V to 10V Standard Voltage: 4.5V CURRENT DRAIN: <5mA Max. S/N RATIO: 40dB or more MAXIMUM INPUT SOUND PRESSURE: 120dB SPL More... Please write down your comment on this product, and click Add to Inquiry List for inquiry Add to Inquiry List Review Inquiry List Back