Sims Cable Dampner?

what exactly is it?
does it work?

im looking for anything to really make my bow as quiet as possible. i dont want to hear anything when i shoot it. I dont mind if i lose some speed, im at 65# and shooting around 280, so i can boost it up to around 70# to gain any lost speed.

Im adding a sts, 4 bow jack string silencers, and maybe even this cable dampner.

heres is what i am referring to...

http://cabelas.com/cabelas/en/templ...tType=&indexId=cat20078&hasJS=true&hasJS=true

Thanks for the help!!