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 ||   The personal stereo is known as a portable audio player using an audiocassette player. This allows us to listen to music through headphones while we are moving. The first personal stereo was bulky but now technology has made it smaller and easy to take with you when you go out.
 * The Walkman was a popular product and brand for Sony, making a lot of money for the company. The personal stereo concept was quickly cloned by other manufacturers and became the most widely used way of listening to music while travelling or exercising. This lasted until the advent of other types of portable audio players such as the MP3 players.

Who and When was it invented? The first personal stereo was the Stereo belt invented and patented by Andreas Pavel in 1977. Pavel attempted advertise this invention but failed to do so. The first commercial personal stereo was the Sony Walkman released in 1979, created by Akio Morita, Masaru Ibuka (the co-founders of Sony) and Kozo Ohsone**R** ||


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