Comes with 5 dixie t pet 12V air horns Perfect replacement Plays the dixie melody This horn sounds like the one used on the General Lee from the Dukes of Hazzard movie. Fit for cars, trucks, busses, boats and any 12 volt vehicles Sound Pressure Level: 125db T pet Diameter: 3.3 inch / 3.1 inch / 3 inch / 3 inch / 2.8 inch T pet Lengths: 10.7 inch / 9.6 inch / 8.3 inch / 7.6 inch / 6.2 inch Material:Plastic, metal colour:Red , Silver Package Contents: 5 x small air horn 1 x air compressor 1 x trachea 1 x installation hardware 1 x 12V relay Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.