... increase or decrease the output volume of the player.The song selection: 1, down song selection ... PLAY / PAUSE (Play / Pause) button, the player will jump to the specified 1234 song and start playing ... PLAY / PAUSE button on the remote control, the player can play and pause state be replaced, in a ... computer, the removable disk is formatted,Put the player indication bed lightsMP3, WMA format songs can ...