motorcycle 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:15*13*14cm4.3 tones,easy to install,and easy to control,fit to all kinds of cars,motorcycle etcmotorcycle alarm siren,12v,50w,3 tones,easy installed CJB-577Video link is : ...