会议话筒SY-370 拾音器类型:Type Of Adapter:φ9.7 背极电容式 Style Of Capacitance 频率响应Frequency Response:(100-12K)Hz 指向性Polar Pattern:心型Heart-Style 输出阻抗Output Impedance:600Ω±30% 非平衡Unbalance 灵敏度Sensitivity:-45dB±3dB 参考拾音距离Reference Sound-Receiving Distance:(20-50)cm 供电电源
