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1.Low-noise processing chips |
2.Special explosion-proof metal |
3.Power polarity protection circuit |
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1.Area:10~150m² (adjustable) |
2.Audio transmission distance:600m |
3.Sensitivity:-65dB±3dB |
4.Impedance:600Ω |
5.Signal amplitude:0~5Vp-p |
6.Frequency range:200Hz~10KHz |
7.Power supply:DC9V~12V 20mA |
8.Wire length:130mm |
9.Dimension:60*45*19mm |