This motor-driven siren is a reliable and durable option for 12-volt vehicles. Its heavy-duty motor ensures dependable service, while its all-metal construction with chrome plating adds to its durability. With a 2-wire hook-up and a compact size of 6" x 5" x 5", it fits most makes and models. Sold individually, this siren is a practical and essential addition to any emergency vehicle or security system.