I found this item at an estate sale. There are several ports on the sides (see pictures) but I'm not sure what they are for. On the inside, there is a compartment for 4 C batteries. I put four new batteries in there and it made a slight static type noise but it was barely audible. I tried tuning it but wasn't able to pick up a station or make any other noises. Considering its age, it's probably safe to say it's not working anymore. The pictures are of the actual item being sold. Please review them for more information.