old bluetooth speakers

History of Bluetooth Speakers – From Analog to Bluetooth Speakers

Speakers have evolved a lot ever since Ernst Siemens patented the first loudspeaker in 1877. The history of speakers is long and interesting. The speaker that everyone knows today was first manufactured in the 1920s. It utilizes a magnetic field to move a magnet or coil that is connected to a part called a diaphragm. …

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