RE6214-1 Universal Soundbar Remote Control Replacement for Polk Audio Signa S1, Signa S2, Signa S3 Sound bar (with Battery)

I bought this to replace my polk s2 remote which never worked great when it was new(they really need better remotes they are crap which is a shame because the sound bar is fantastic)and stopped working recently. Had to wait nearly a month for it too arrive, and it was in good shape well wrapped etc however as soon as I picked it up I was worried as I was even lighter than the original, which I didn't think was possible.My worry was confirmed when I tried to pair it, absolutely nothing. I tried everything, my wife tried, my son tried nothing.I get the impression that the remote is just an empty plastic box so I think a hammer is in order to open it and see. I fell pretty disappointed with this purchase and will not be buying anything for a US amazon marketplace ever again. Lesson learned:(