motorcycle siren speaker,Storage battery car siren and speakeris 50 watt,with ... install,and easy to control motorcycle siren speaker,Storage battery car siren and speaker1.voltage:12v2.power:40watt3.packing ... 3 tones,easy to install,and easy to control,fit to all kinds of cars,motorcycle etcmotorcycle alarm siren ... =CJB-57712V50W.mp4 motorcycle siren speaker,Storage battery car siren and speaker CJB-577