MP3 player or digital audio player, is a consumer electronics device that stores, organizes and plays audio files.

 Digital sampling is used to convert an audio wave to a sequence of binary numbers that can be stored in a digital format, such as MP3.
Common features of all MP3 players are a memory storage device, such as flash memory or a miniature hard disk drive, an embedded processor, and an audio Codec microchip to convert compressed sound into analog form that is then played through the speaker jack.

 Most MP3s are powered by Rechargeable Batteries.
Listening to music stored, is typically done through Earphones and stereo systems connected with a 3.5 mm jack.
Many like to use their MP3 in the car and so use Car Adapters to enable them to do so.

For the full story of the MP3 Take a look at History

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