1861, in an early form of telephone earpiece.
horace short
Rice Kellogg
In 1958, the first box-enclosed loudspeakers were invented
First the headphone was developed. Than a headphone capsule was put upsode down on a saucer with a little distance. That was the first loudspeaker. Scroll down to related links and look at "History of loudspeakers".
lg ks360 does have a loudspeaker !
No, Loudspeaker is an output device.
up your neighbour's loudspeaker?
The duration of The Loudspeaker is 1.12 hours.
There are two syllables in "loudspeaker."
The Loudspeaker was created on 1934-06-01.
Name: Johann Phillip Reis-1st loudspeaker Name: Alexander Graham Bell - Electric loudspeaker
1) Crystal Loudspeaker 2) Electrostatic (Condenser/Capacitor) Loudspeaker 3) Dynamic Loudspeaker