Speaker

Speaker is available in Bangladesh.The speaker, or loudspeaker, have been a staple when it comes to sound systems. Speakers are found in home entertainment systems, computers, and even integrated into gadgets like phones. They are used in many applications, like sporting events, parties, gatherings, seminars and the like. But have you ever wondered how the idea of a loudspeaker came to life

Modern electric loudspeakers had their origins in radio and telephone technology. The first simple type of electronic loudspeaker was developed by Johann Philipp Reis in 1861. Reis was a teacher at Friedrichsdorf, Germany and he was a self-taught inventor. He installed it on his telephone. It was crudely able to reproduce clear tones, but it can also reproduce muffled speech after a few revisions.