Mike,
"the battery" is 2 batteries and load from a screw-out plug. The
speaker is a metal disc on the opposite side of the circuit board and
you need to force your way into the fob in order to do the cleaning.
Two prongs on the circuit board make contact with the metal
disc/speaker to caue the sound to be made. The disc is thin metal that
looks brass-colored on the outer ring and silver on a slightly-raise
"mesa".
Joe
