12 volt heated blanket

I found a 12 volt blanket here. https://www.amazon.com/Trillium-Worldwide-12-Volt-Heated-Blanket/dp/B0000DYVN9/ref=as_li_ss_tl?ie=UTF8&dpID=41k3kSfNSKL&dpSrc=sims&preST=_AC_UL160_SR160,160_&refRID...