Automotive Motorcycle Car Van Truck Boat 5 Sound Tone Microphone Mic Annunciator Loud Horn Siren Max 300db 12V Package includes: One piece of Electronic Annunciator Siren Horn Speaker with microphone & accessories Provides very loud sound - about 300 decibels at full volume. 5 Siren sounds: Ambulance/Traffic/police/Fire alarm & Custom With Switch & Volumn adjustment. Press the red button below then you can speak on your own