it has throughed ISO9000 and 3C certification
two-tone horn/blue horn/horn/currency horn

1,signal mode;metal hit

2,sound transmission;sound transmits along the striang line,the structure of horn prevents the sound to diverge.

3,advantages;the sound is resounding ,with good penetrability,commonly used in warning the distant drivers

4,it adopts the top -grade material,is able to bear all kinds of weather ,with a strong anti-hit ability
two-tone horn/blue horn/horn/currency horn