FREE: Pocket Mini Speaker

The listing, Pocket Mini Speaker has ended.

Prime PL 4236 Pocket mini speaker.
I don't know much about this, other than what i read in the brief instructions. As follows; * miniature stereo speaker set. *For use with any personal entertainment device. * features 3.5 mm stereo plug and 6" cord
I tried it with my cell phone, it worked but was very faint.
I couldn't figure out how to make it louder. I opened it up, (4 little screws on the back) thinking that maybe it needed a new battery but there is no battery. It should work as it is,new in box but I don't know and can't guarantee it .Hard to tell in the picture , it's the red thing on the right.. It is 3 inches wide, an inch and a half high and about a half inch or so thick.