The Interphone Pro Sound audio kit is a set of high-performance speakers and a new microphone for Interphone intercom systems. The kit works with the current Interphone intercom lineup, including the ...

Editor’s Note: Many intercom owners have been asking about how they might go about replacing their original equipment speakers with higher-quality speakers or earbuds. Until the intercom manufacturers ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. There are three types of communication that can convey complex information: written, visual (i.e.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Since the introduction of the first analog intercom systems 40 years ago, it would be easy to ...