@sharpmom teh Jensen JTA-230 uses a 3.5mm headphone jack which is pretty much standard for headphones. The question now is what size is the connector on your headphones/earbuds. Measure the diameter of your connector and let us know what it is. Or post some images with a measuring tape next to it so we can see what you are dealing with. It is not the JTA that is unusual. If nothing else maybe you have a make and model for your headphones/earbuds [guide|21499]