MP3 player, a digital audio player that can store, organize and play audio files, is becoming more and more popular all over the world. Some MP3 Players are referred to as portable media Players as they are compatible with image-viewing and/or video-playing functions. But at present, most MP3 Players are powered by rechargeable batteries, some of which are not replaceable. Listening to music stored on MP3 Players is typically through earphones and stereo systems connected with a 3.5 mm jack. Some of MP3 Players are built-in a sunglasses, which are called Sunglasses MP3 Player and it is also very popular now.
Digital audio Players are Flash-based Music Players generally, they are devices without mechanical solid state that hold digital audio files on internal flash memory or removable flash media called memory cards. Basic MP3 Player functions are commonly integrated into USB flash drives.