A device was assembled using optically transparent glass electrodes and combining two complementary electrochromic polymeric materials, poly(4,4'-dipentoxy-2,2'-bithiophene) and poly(N,N'-dimethyl-2,2'-bipyrrole). As electrolyte we used an ionically conductive polymer; poly(epichlorohydrin-co-ethylene oxide) containing a lithium salt. The optical contrast in the visible/near infrared region, stability to repeated redox cycles and electrochromic efficiency are reported and discussed.296753757