... horn One pair JGY-102-3,24V, JGK-502 valve(with Aluminum coil) raised base cover,Dual tone electric air hornProduct features ... job is stable and reliable 3, quality good, not influenced by the vibration, low temperature, high temperature, voltage change affects4, permanent keep ... Madeira Islands One pair JGY-102-3, 24V, JGK-502 valve(with Aluminum coil) raised base cover,Dual tone electric air horn