不卡中文字幕Av影片,久久综合网色—综合色88,国产精品免费久久,欧美精品2021,2019偷偷狠狠的日日,制服丝袜人妻专区,亚洲精品无码mv下载

  • Chinese
  • 丨
  • English
  • 400- 8888-888
Your location: Home>Product display>The sound system
  • Sj-my270 handheld wired microphone
  • Sj-my270 handheld wired microphone
< >

Sj-my270 handheld wired microphone

Product synopsis: in moving coil can way 40 hz - 16 KHZ frequency response refers to the sexual super heart-shaped directivity output impedance 600 Ω plus or minus 30% spirit acuity and 55 db + 3 db input volume MAX 128 db sound pressure consulting

Product details

Product synopsis: in moving coil can way 40 hz - 16 KHZ frequency response refers to the sexual super heart-shaped directivity output impedance 600 Ω plus or minus 30% spirit acuity and 55 db + 3 db input volume MAX 128 db sound pressure 


    

    

        

          



不卡中文字幕Av影片,久久综合网色—综合色88,国产精品免费久久,欧美精品2021,2019偷偷狠狠的日日,制服丝袜人妻专区,亚洲精品无码mv下载
五月丁香六月综合缴情网
国产AV一级黄片
国产成人精品AAA视频
第一福利永久视频精品
日本中文字幕在线精品一区