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Product details
1. Speaker size: 40mm 2. Sensitivity: 100 +/- 3dB 3. Frequency range: 20Hz-20KHz 4. Microphone: 6.0x5.0mm 5. Microphone sensitivity: -42 +/- 3dB 6. Directionality: omnidirectional 7. Impedance: 20ohm+/- 15% 8. Microphone impedance: 2.2kohm 9. Headphone jack: USB+3.5mm 10. Cable length: about 2.2m 11. LED working voltage: DC 5V 12. Working current: about 200mA a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a