KS-4015PC high sensitivity electret condenser microphone :

KS-6022 with pin 

Condenser Microphone: 

1.Diameter:4.0mm,Height:1.5mm;
2.Frequency Range:50-20KHz;
3.Sensitivity: -48 to -66dB;
4.Current Consumption: max.500uA;
5.Standard Voltage Range:3v;             6.Operating Voltage Range:1.5-10v;       7.Siganl to noise Ratio:≤58db;