It adopts design of integrate, all siren tones and output power of microphone can be adjusted continuously.
It is fitted for alarm system, for example especial vehicle and forbidden area.
Output power: 80w, 100w or 300w.

Impedance: 4 ohm or 8 ohm
Main function: Yelp\yelp-s\wail\hi-lo\engineerning(traffic)\horn\siren.

Net weight: 1.07/1.12/1.6kgs