One pair JGY-103, 12V/24V,JGK-503VALVE,copper coil, w/aluminium red pipes ,Dual tone electric air horn One pair JGY- ... 103,12V/24V,JGK-503VALVE,copper coil,w/aluminium red pipes ,Dual tone electric air horn Product features ... Islands One pair JGY-103, 12V/24V,JGK-503VALVE,copper coil, w/aluminium red pipes ,Dual tone electric air horn