SHENZHEN, China, Sept. 12, 2025 /PRNewswire/ -- Hollyland today unveiled its next-generation wireless intercom system, delivering unprecedented scale and flexibility for professional productions. The ...
Contacta, the Florida-based, assistive listening specialist, has launched the first window intercom system with a Level 8 UL752 approval. Designed for installation in high level security windows, the ...
The earliest intercom uses date back to the late 1960s and early 1970s, when concerts became too loud to allow for waving pieces of paper or shouting from the stage to the back of the hall. The ...
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