squawk box
squawker
intercom speaker

Luckily, Babs does not even see them because she is just a voice on a small intercom speaker.

I thought I'd have several hours to myself before going back on duty, but the ship's intercom speakers put an end to that idea.

A voice came from an intercom speaker, one normally used for voice-direction of machines.

A note of grim humor came across the intercom speaker.

The monitor cycles to show me sitting with my ear to the intercom speaker.

It's my mom's voice, muffled and tired, coming over the intercom speaker from some unknown room.

He smiled, then leaned forward until his great, wide jaw was inches from the intercom speaker.

Jones called out rather than use the intercom speaker.

Still another voice was heard on the intercom speaker.

What I ended up staring at was the intercom speaker above the door.