无码毛片高潮一级一免费,国产一卡久久电影永久,免费黄片国产一区二区三区,亚洲淫秽视频大全

Set Index |  Collection
 

Product list
Sound system
Public broadcasting system
Video conferencing system
Products
Gooseneck conference microphone cable BK-241(220V)
鵝頸式有線會議麥克風
 
Instructions
Parameter

The BK-241 microphone (external power supply)
The microphone ON/OFF long life, high resistance to squelch boatlike switch
The microphone sound head is opened, the red indicator will light.
The Annex: wind sponge 1 /5m balance line 1
The capacitance type: capacitive
The point: cardioid
The output impedance: 75 ohms
The frequency response (Hz): 40Hz-16KHz
The sensitivity: -40dB ± 2dB
The power supply voltage (V): external power supply
The reference pickup distance: 20-50cm
The low frequency attenuation: 125Hz 6dB/OCTAVE
The output impedance: 200 ohms
The maximum sound pressure: 135dB SPL 1KHz At1% T.H.D
The signal-to-noise ratio of 66dB.1KHz: AT PA
The dynamic range: 111dB.1KHz AT MA
The wire length: 5m 

Print【Back】Close
Copyright © 2014-2020  Guangzhou qixiang all rights reserved.
Address: guangzhou baiyun district ishii lake houses door tian industrial district ling - industrial zone zip code:510450
Tel:020-31232523(eight lines)