1. Model: S2002. Speaker Diameter:50mm3. Impedance: 20 ohm+/-15%4. Sensitivity: 110dB+/-3dB5. Frequency range: 20Hz-20KHz6. Mic dimenSion: 6.0 x 2.7mm7. Mic sensitivity: -36dB+/-2dB8. Mic impedance: Less than or equal to 2.2kohm+/-10%9. Directionality: Omni-directional10. LED working voltage: DC 5V±5%11. Working Current: Less than or equal to 200mA12. Headset jack: 3.5mm 4Pin13. Cable length:
