I concur with the Part 1 conclusion. The Interphone F4 is easy to use and it has outstanding sound and volume. It also pairs with anything Bluetooth. The IP-67 waterproof rating is a worthy exclusive; ...

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 ...

Interphone’s new F4 intercom uses the latest Bluetooth wireless stereo technology and noise cancellation techniques, to deliver what its makers call “advanced communications on the move in a ...