... JGK-502 valve with copper coil,Dual tone electric air horn One pair JGY-102-2,12V/24V,JGK- ... coil) raised base cover,Dual tone electric air hornProduct features: 1, horn sound quality good, frequency extremely stable2, long ... Guangzhou Shipping worldwide!!! : We usually send by CHINA AIR MAIL POST OFFICE only. And we might choose other shipping ... valve with copper coil,Dual tone electric air horn