国内自拍在在钱_国人精品视频在线观看_国偷自产视频一区二区久_国偷自拍第113页_亚州αv_亚州春色

1.传感器类型：驻极体电容极头；                                                                              

2.拾音距离半径6米；                                                                                                     

3.灵敏度 -42db± 3dB（0db=1V/Pa@1kHz）；                                                  

4.信噪比：71db；                                                                                                    

5.输出连接方式：高质量屏蔽平行网线，供电和音频传输一条线完成。