... /24V JGK-505VALVE,copper coil,flat base cover,Dual tone electric air horn One pair JGY-101-1,12V/24V JGK-505VALVE ... ,copper coil,flat base cover,Dual tone electric air horn Product features: 1, horn sound quality good, frequency extremely stable2, long ... ,12V/24V JGK-505VALVE,copper coil,flat base cover,Dual tone electric air horn