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Impedance: 20ohm±15%
Sensitivity: 117dB±3dB
Frequency: 20-20000Hz
Mic dimension: 6.0 * 2.7mm
Mic sensitivity: -36dB +/- 1dB
Mic impedance: 2.2kohm
Directivity: Omni-directional
LED working voltage: DC5V +/- 5% 
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