siren adopts deatched design, has microcomputer programmer. the controller handle has blue screen.

siren:

 the controller handle has blue screen and can show the working state in screen. it has 8 kinds of tones and cmicrophone, fitted for 80w, 100w,150w speaker. it widely used in police car, fire truck, ambulance car special car and so on.

CJB-157 SANTANA 3000 siren