Single mode:Metal hit
Sound transmission:transmits along the straight line in the right way tropism,the
structure of horn prevented the sound to diverge to side,but is controlled to send
it out forward,volume is intensity of sound.
The merits of using:the sound is resounding,has the very good penetrability,
mosfly used in warning the far driver.
Production material:It adopied the high grade material,
the material adapts each kind of weather,and has the strong anti-hit ability.