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1.Built-in AGC circuit audio gain |
2.Metal mesh into the audio port |
3.Japan made gold capacitor microphone |
4.Dynamic closed-loop noise reduction circuit |
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1.Area:10~100m² (adjustable) |
2.Audio transmission distance:1000m |
3.Sensitivity:-46dB±3dB |
4.Impedance:600Ω |
5.Signal amplitude:0~6Vp-p |
6.Frequency range:100Hz~15KHz |
7.Power supply:DC9V~12V 25mA |
8.Wire length:120mm |
9.Dimension:86*86*34mm |