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| 1.Optimization of acoustic monitoring head voice |
| 2.Silver capacitor microphone made in Japan |
| 3.Standard switch enclosure |
| 1.Area:10~80m² (adjustable) |
| 2.Audio transmission distance:1000m |
| 3.Sensitivity:-50dB±3dB |
| 4.Impedance:600Ω |
| 5.Signal amplitude:0~6Vp-p |
| 6.Frequency range:100Hz~15KHz |
| 7.Power supply:DC6V~12V 20mA |
| 8.Wire length:95mm |
| 9.Dimension:88*88*19mm |