Description
Key Specifications/ Special Features:
- Speaker diameter: 50mm
- Impedance: 20Ω±10%
- Speaker sensitivity: 119±3dB
- Frequency range: 20Hz-20kHz
- Microphone diameter: 4.0mm1.5mm
- Microphone sensitivity: -38±3db
- Impedance: 2.2KΩ
- Cable length: 2.1±0.15
- Working voltage: DC5V±5%
- interface：USB+3.5*2 / 7.1USB can option
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