Rated Voltage: 9-16VDC; S.P.L:105/108/112/115db;
Reted Current :550/1000/1200/1500mA;Weight:316-/+10g;
Coil Dimension:25.6mm.

This product can be used as either a siren or a loudspeaker. 3 different tones can be selected to make alarming when draw people's attention or there is emergency.

Voice can be amplified if the user speaks through the microphone.It can be installed on police cars or fire engine.

Durable and reliable;