| Element | Back Electret Condenser | |
| Polar Pattern | Uni-directional | |
| Frequency Response | 50Hz-16KHz | |
| Sensitivity | -45dB±3dB/pa | |
| Output Impedance | 250Ω±30% | |
| Dimension | 
				Φ15mm | 
		
           
           
                
					 
					                    
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