in) socket, then use a two-pronged audio cable with a plug (diameter 3.5mm), one end of the headphone port into the cell phone, the other end of the plug into the line input socket of the player, and then play the phone.
2, if the player has a USB port (can be plugged into a USB flash drive), then the music downloaded from the phone to copy the U disk (with the computer's Explorer, Android phones with 91 Assistant software, or with pea pod software, Apple phones with itune software, to see that can be used), and then plug the U disk into the player's USB port can be played.
3, if the player has bluetooth function, use your cell phone bluetooth and player bluetooth pairing, and then use the cell phone to play the music, in the player's speakers will have sound.