How to Use This Portable CD Player note1: this item dose not built-in battery, the battery does not comes with package note 2: it needs a male to male aux cable if you want to use it in car, this cable does not comes with package; this item dose not have inserted speaker, so you need to use headphonse or connect it with other speaker by aux cable. Play: Press it twice will turn on the CD player; Press it once will pause when it is playing CD. Skip Forward: Press it once, it will skip to next song. Press it for a while to change to fast forward. Skip Back: Press it once, it plays the last song one more time; Press it twice, it will skip back one song Mode: For you to choose how to play songs, 5 modes included: Single Cycle ("1" means to play the same song all the time), ALL(songs play all in order), INTRO(browse play), SHUF(play in any order). ASP: Shock-protection(40s) function will be on once you turn on the cd player. When it's playing MP3-CD, ASP function will be on automatically(120s). DIR: Select the playlist in MP3 mode. If one of two battery runs out, the cd player can not work either. It requires both AA batteries have power. Package Contents: 1 x HOTT CD Player 1 x 3.5mm Earphone 1 x USB Charging Cable( this cable only use to supply power. this cd player does not be built-in battery, so it can not storage power. 1 x User Manual