Electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance.
1
There is a second, larger speaker unit incorporated as well.
2
A loud- speaker unit was playing 'The Internationale' in the square.
3
The service, app, and speaker unit are far from being available on the App Store.
4
The XB2 weighs just 480g but encompasses a newly developed 42mm gauge full range speaker unit.
5
He lifted down the mini hi-fi, unscrewed the back of the speaker cabinets, opened them up, and cut away the speaker units themselves.