... 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 ... *13*14cm4.3 tones,easy to install,and easy to control,fit to all kinds of cars,motorcycle etcmotorcycle alarm siren,12v ...