This is a Yamaha portable CD player, the CDX-7. Its size is almost the same as a CD case. There is age-related soiling overall. Please check the photos. Operation has been fully confirmed. However, there may be some crackling when adjusting the volume. Since it doesn't have a built-in speaker, you can listen through headphones or connect it to a stereo system using the line output on the back. Power is supplied by an AC adapter or two AA batteries. It's compact, so you can keep it close by and enjoy your favorite music with earphones without worrying about your surroundings. AC adapter included, AA batteries not included. Ships in 1-2 days.