It worked when connected to the power supply, but I haven't tested the sound output since initializing it and haven't put any music on it. The battery condition is not good, so it won't work when unplugged from the power. The wheel operation was relatively smooth, but since it's an old product, I'm selling it as junk. There are scratches and chips on the top and bottom of the main unit. The backlight doesn't seem to turn on. There are no accessories, only the main unit. Please understand that this is a used, junk item, and has been stored at home before purchasing.