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This was the first ever method of recording and playing back sound. It was created by Thomas Edison
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This device recorded sounds, and even human voices.
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This is was the first portable stereo. This invention allowed people to take their music with them.
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This device allowed music to be played in a smaller, more portable format. it also enabled the first mix tapes.
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These brought recorded music into cars before the audio cassette players were added.
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This was the first ever personal music player released by Sony. This audio player combined headphones with cassette players.
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The MP3 player eliminated the need for another device to play music.
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The iPod made digital music more popular.
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Had a touch screen, and allowed you to play games as well as some other features.
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The iPhone has digital music available anywhere, and is able to connect to blue tooth, and touch screen. Though it is not intended only to play music, it is still counted as an audio player.