Do not mix alkaline, standard (carbon-zinc) or rechargeable (nickel-cadmium) batteries.Insert the batteries, matching the batteries to the (+) and (–) marks inside the battery compartment.ģ. Press and push the battery compartment cover to remove it.Ģ. Your universal remote requires two AAA alkaline batteries (not included).ġ. User manual Remote Control Step 1: Install your batteries RCA RCRBB04GBE 4-device Universal Remote-streaming Player & Sound Bar Compatible - Use Manual - Use Guide PDF.