Vizio Smart TV Qwerty Keyboard Remote for Vizio Smart TV Models Vizio Smart TV Qwerty Keyboard Remote for Vizio Smart TV Models Compatible with E701i-A3E E650i-A2 M550VSE E701i-A3 E601i-A3 M420KD M470SL M420SL M550SL XRT302 M470VSE M650VSE m420sl m470sl m550sl m370sr m420kd e551va e502ar xvt3d554sv e390i-a1 e500i-a1 e500i-a1 m501-a2r m501-a2r xvt423sv e551va e422vl e552vl m370sr e472vl e472vle e552vle e460me m420sr m420sv m470sv m550sv e3d320vx e3d420vx e3db420vx e3d470vx m320sr m3d421sr m3d550sr m3d460sr m3d420sr xvt3d474sv e3d420vx xvt3d650sv No need any preprogram, It is ready to use after inserting the batteries