This listing is for ONE (1) ELECTRONIC RED LIGHT FLASHING MECHANISM. TYCO Toys original equipment intended for the HO Scaled, Mustang 5.0 Police car. It will operate between 9V & 24V DC at least. Just add pigtails, connect to both sides of the motor, either by twist or solder & away you go. VERY RARE or should i say ODD, to see ever offered for sale. A very unique bit of TYCO Racing history.