1) Operating voltage:1.5~3V;
2) Rated current:max.0.5mA;
3) S/N :min.60dB;

4) Impedance:max.2.2KΩ;

5) Frequency:20~20000Hz;

6) Operating temperature:-10°c~+60°c;

7) Storage temperature:-20°c~+70°c;