ES-130     High Power Sound Effect Generator & Driver Circuit
( DC 9 ~ 12V)

  ( DC 9 ~ 12V)
(drives 8 ~ 16 ohm horn speaker.  Horn speaker not included)
A kit that generates 4 different sound effects. (Police / ambulance / fire engine / machine gun)  The CMOS IC synthesizes these sounds electronically. The circuit has a power transistor as booster for driving horn speaker which will produce extremely loud siren sound.
Applications :  Siren for security alarm system,  ambulance siren, ....
         M3561 datasheet (pdf)