When were speakers made?

Speakers, as we know them today, began to be developed in the late 19th century. The first electromagnetic loudspeaker was invented by Emil Berliner in 1877, which laid the groundwork for modern audio technology. Over the following decades, advancements in materials and technology led to the development of various types of speakers used in radio and sound systems. By the early 20th century, speakers had become integral components of audio playback devices.