Experience the ultimate in low-frequency sound with the Hammer 100W Speaker/Siren! This all-in-one unit combines a siren, amplifier and speaker, resulting in clear, powerful and consistent sound. Easily mount it to any emergency vehicle for maximum impact. With a voltage input range of 9-15 VDC, a current draw of 17 A, and dimensions of 7.25" x 7.25" x 9.25", the Hammer is compact and perfect for any setup. Enjoy multiple tones and park-kill functionality, all in one convenient package. Vehicle-specific brackets are also available for a perfect fit. Designed and made in the USA, it also comes with a two year warranty for your peace of mind.