Generic Earphone for Cellphone

KY-413
Microphone Unit:
1. Size: Φ 6.0*5.0mm
2. Frequency Response: 20Hz-16KHz
3. Sensitivity: -58db+/-2db
4. Rated Voltage: 3V
Driver Unit:
1. Size: Φ 15mm
2. Frequency Response: 50Hz-16KHz
3. Sensitivity: 105+/-5db
4. Impedance: 32Ω +/-10%
5. Power Capability: 30mw