keylessoption keyless entry remote smart key fob case shell outer cover for nissan altima maxima murano infiniti g37 kr55wk48903 keylessoption a quick, easy and affordable way to replace a cracked or worn out keyless entry remote key fob case or shell. replace the outer case or shell instead of the entire assembly with this product. installation is simple and reprogramming is not required. no electronics or circuit board are included. you must transfer over your original components into this case.