Product details of Sony ECM 728 Conference Microphone Goose neck Condenser Microphone
It's a Uni-directional Gooseneck (Condenser) Microphone
Push Switch ON/ OFF
Use 2 Batteries
Polar Pattern: Unidirectional
Frequency Response: 50-14Khz
Sensitivity: -35±1dB
Output Impedance: 500Ω
Power Supply: DC 3 V(1.5*2)
Cable Length: 6m(Unblanced)
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