... siren speaker,Storage battery car siren and speakeris 50 watt,with 3 tones,easy to install,and easy to control motorcycle siren speaker,Storage battery ... car siren and speaker1.voltage:12v2.power:40watt3.packing size ... fit to all kinds of cars,motorcycle etc motorcycle alarm siren,12v,50w,3 tones,easy installed CJB-577 Video ...