D7234 Embedded Speech Delegate UnitSeptember 7, 2021The D7233/D7234 conference unit integrates functions such as speaking, voting, sign-in, self-test, tea application service and two-way intercom. Adopt cardioid directional condenser microphone, built-...view
D6211 Conference Expansion UnitAugust 18, 2017It works with the conference controller to extend the maximum number of conference units. In a conference system, it supports up to 32 extension controllers. It may be installed on a 19 inch standard ...view
D6231 Embedded Chairman Microphone with Voting FunctionAugust 21, 2017D6231 embedded chairman microphone with voting function is a professional conference system Microphone with sensitive buttons and easy to operate. Not only does it have exquisite embedded structure de...viewwe will contact you within 24 hours.
DSPPA Emergency PA System Applied in Yuanba Gas FieldDecember 14, 2016DSPPA emergency PA system has been applied in Yuanba gas field, which is located in Sichuan province. It is the deepest marine gas field in China.DSPPA technical staff at Yuba Gas FieldYuanba gas fiel...view
【DSPPA】 Editor of Double National StandardDecember 22, 2021In May 2010, Technical Code for Public Address System Engineering (GB50526-2010), the world’s first national standard for public engineering with DSPPA as the chief editor, was issued by the Ministry of Housing and Urban-Rural Development of PRC, establishing China's independent intellectual property right in the field of Public Address (short for PA) system.view
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