100% tested & working. This unit is in pretty good condition, there are some imperfections here and there but nothing major, see photos. The cd player works great and plays through all tracks on a cd. You have to have a power cord to listen to CDs and it will not play CDs unless powered by a power adapter. Please understand this unit could use a new power adapter and don’t expect the broken one to work, it will need repaired or better yet replaced. But would like to send the oem adapter with the stereo. Looking for a portable audio system that can play your favorite CD and radio stations? Check out this Sony Personal Audio System Stereo CD Radio Boombox Portable – ZS-H10CP. With its vibrant red color, you can bring this boombox on the go and enjoy your music anytime and anywhere. It has a CD changer capacity of 1 and can connect to MP3 players. This Sony ZS-H10CP is perfect for music lovers who are always on the move.