A:Answer The wireless module that was made by Polk for this item has been discontinued and is no longer made. From what I have gathered from reviews for this wireless module, apparently it was a piece of garbage and that’s why Polk discontinued the item. I tried to contact polk about what I can use as a substitution considering they had discontinued their wireless module.They wrote me an email back stating that they would let me know is soon as they found out. I never heard back from them. But as far as the subwoofer itself, it is a MONSTER & you will not be disappointed as long as you can wire it up.
