1. Drive diameter: 40mm
2. Interface: USB+3.5mm stereo
3. Sensitivity: 110dB ±3dB
4. Frequency range: 20~ 20k Hz
5. Microphone size: 4.0 x 1.5mm
6. Microphone sensitivity: -38dB ±3dB
7. Directionality: omnidirectional
8. LED operating voltage: DC 5V ±5%
9. Working current: ≤100mA
10. Function: microphone, noise reduction