Portable music players can't download music by themselves. They need to be connected to a computer with a data cable and downloaded to the player through the computer. Some players with Bluetooth system can also be imported through Bluetooth transmission.
At first, the Walkman only had the functions of radio, tape playing or recording. Because of its small size, it was carried around the waist and was used by many young people. With the development and progress of electronic technology, the volume has become smaller and smaller, and many varieties have evolved, including CD, MD, MP3, MP4 and so on.